天津采购水性蜡
不(bu)(bu)同(tong)的(de)(de)(de)乳化工(gong)艺会(hui)制备得到各种(zhong)(zhong)性(xing)(xing)能(neng)的(de)(de)(de)水(shui)(shui)(shui)性(xing)(xing)蜡,主要(yao)的(de)(de)(de)性(xing)(xing)能(neng)特(te)性(xing)(xing):耐磨(mo),耐刮,消(xiao)光,高光泽,抛光,滑(hua)爽,手感,抑滑(hua),疏水(shui)(shui)(shui),抗粘连,耐污,脱模,耐温等种(zhong)(zhong)子(zi)(zi)(zi)涂布(bu)上一层(ceng)(ceng)种(zhong)(zhong)衣剂(ji)是(shi)现代(dai)农业的(de)(de)(de)标(biao)准(zhun)。其作用(yong)为: 由(you)种(zhong)(zhong)衣剂(ji)形成的(de)(de)(de)保护膜(mo),使(shi)种(zhong)(zhong)子(zi)(zi)(zi)整(zheng)体(ti)有(you)更好的(de)(de)(de)加(jia)工(gong)条件以提高生产良率,同(tong)时种(zhong)(zhong)衣剂(ji)保护膜(mo)对(dui)各种(zhong)(zhong)外在(zai)影响有(you)更高的(de)(de)(de)防护作用(yong)。蜡乳液无(wu)(wu)毒,不(bu)(bu)含voc,对(dui)种(zhong)(zhong)子(zi)(zi)(zi)、土壤和(he)(he)人体(ti)均无(wu)(wu)有(you)害影响。在(zai)种(zhong)(zhong)衣剂(ji)包覆过(guo)程中,蜡粒子(zi)(zi)(zi)迁移至涂层(ceng)(ceng)表(biao)面(mian),形成薄层(ceng)(ceng)保护,提高涂层(ceng)(ceng)表(biao)干速度(du),减(jian)少(shao)干燥成膜(mo)过(guo)程中种(zhong)(zhong)子(zi)(zi)(zi)之(zhi)间的(de)(de)(de)粘连和(he)(he)破损。水(shui)(shui)(shui)性(xing)(xing)蜡助剂(ji)能(neng)提高种(zhong)(zhong)子(zi)(zi)(zi)整(zheng)体(ti)的(de)(de)(de)耐磨(mo)性(xing)(xing)、流动(dong)性(xing)(xing)及适种(zhong)(zhong)性(xing)(xing)。同(tong)时加(jia)入水(shui)(shui)(shui)性(xing)(xing)蜡助剂(ji)能(neng)帮(bang)助涂层(ceng)(ceng)的(de)(de)(de)光亮度(du)和(he)(he)鲜(xian)艳度(du)也有(you)提高。翁开尔(er)(上海)国际贸(mao)易有(you)限(xian)公司(si)是(shi)一家专业提供水(shui)(shui)(shui)性(xing)(xing)蜡 的(de)(de)(de)公司(si),有(you)想法的(de)(de)(de)不(bu)(bu)要(yao)错过(guo)哦!天津采购(gou)水(shui)(shui)(shui)性(xing)(xing)蜡
由于(yu)(yu)(yu)乳(ru)化蜡(la)(la)具(ju)有(you)(you)填(tian)充、提高材(cai)料和(he)制品(pin)表 面(mian)(mian)光(guang)(guang)洁度(du)的(de)(de)(de)功(gong)能(neng), 它(ta)常作为上光(guang)(guang)剂(ji)(ji)应(ying)用(yong)(yong)于(yu)(yu)(yu)皮(pi)革(ge)(ge)、地板(ban)、家具(ju)、塑制品(pin)及汽车上光(guang)(guang)。皮(pi)革(ge)(ge)行(xing)业(ye)方面(mian)(mian),乳(ru)化蜡(la)(la)是(shi)皮(pi)革(ge)(ge)行(xing)业(ye)生(sheng)产(chan)中(zhong)一种(zhong)(zhong)(zhong)重要的(de)(de)(de)涂(tu)饰助剂(ji)(ji)。其(qi)实(shi),上光(guang)(guang)功(gong)能(neng)只是(shi)其(qi)在皮(pi)革(ge)(ge)行(xing)业(ye)所(suo)具(ju)有(you)(you)的(de)(de)(de)多种(zhong)(zhong)(zhong)功(gong)能(neng)中(zhong)的(de)(de)(de)一种(zhong)(zhong)(zhong), 同时(shi)它(ta)还(hai)兼有(you)(you)填(tian)充、滑(hua)爽、改善(shan)皮(pi)革(ge)(ge)手(shou)感、增强真皮(pi)感等功(gong)能(neng)。应(ying)用(yong)(yong)于(yu)(yu)(yu)纺织(zhi)业(ye):主要是(shi)用(yong)(yong)于(yu)(yu)(yu)纱(sha)线(xian)(xian)整(zheng)(zheng)理(li)和(he)纺织(zhi)后整(zheng)(zheng)理(li)剂(ji)(ji)。纱(sha)线(xian)(xian)整(zheng)(zheng)理(li)是(shi)将蜡(la)(la)乳(ru)液(ye)用(yong)(yong)于(yu)(yu)(yu)成品(pin)纱(sha)线(xian)(xian)上,这(zhei)种(zhong)(zhong)(zhong)处理(li)能(neng)产(chan)生(sheng)高的(de)(de)(de)光(guang)(guang)泽,更(geng)深更(geng)鲜明的(de)(de)(de)颜色,以及较高的(de)(de)(de)弹性(xing)和(he)抗张强度(du),同时(shi)防止纱(sha)线(xian)(xian)的(de)(de)(de)起(qi)毛和(he)断裂。另外,有(you)(you)机硅复(fu)配的(de)(de)(de)硅蜡(la)(la)乳(ru)液(ye)在纺织(zhi)中(zhong)也会经常使(shi)用(yong)(yong)。缝纫线(xian)(xian)结(jie)构(gou)蓬松,如(ru)果直接(jie)用(yong)(yong)有(you)(you)机硅处理(li),硅油很(hen)容易渗透到线(xian)(xian)的(de)(de)(de)内部,导(dao)致成本(ben)增加以及线(xian)(xian)的(de)(de)(de)清洁工作量加大。而蜡(la)(la)本(ben)身就是(shi)一种(zhong)(zhong)(zhong)良(liang)(liang)好的(de)(de)(de)润(run)滑(hua)产(chan)品(pin),和(he)有(you)(you)机硅复(fu)配可(ke)以保证蜡(la)(la)可(ke)以停留在线(xian)(xian)的(de)(de)(de)表面(mian)(mian),不往里渗透,又可(ke)以很(hen)好的(de)(de)(de)改善(shan)硅油处理(li)产(chan)生(sheng)的(de)(de)(de)问题。应(ying)用(yong)(yong)于(yu)(yu)(yu)后整(zheng)(zheng)理(li)主要是(shi)作为纺织(zhi)后整(zheng)(zheng)理(li)剂(ji)(ji)的(de)(de)(de)一个重要组分,目(mu)的(de)(de)(de)是(shi)赋(fu)予(yu)这(zhei)些纺织(zhi)品(pin)优良(liang)(liang)的(de)(de)(de)柔软(ruan)手(shou)感,好的(de)(de)(de)平滑(hua)度(du)及光(guang)(guang)泽度(du)等河(he)北销售水(shui)性(xing)蜡(la)(la)粉水(shui)性(xing)蜡(la)(la) ,就选翁开尔(er)(上海)国际贸易有(you)(you)限公司,让您满意(yi),期待您的(de)(de)(de)光(guang)(guang)临!
砂蜡(la)用(yong)于汽车(che)抛(pao)光(guang)。砂采用(yong)合成蜡(la)和(he)(he)特殊磨料制(zhi)成,通过强(qiang)力磨粒(li),轻松安全地去(qu)除车(che)身表面的氧化膜、细小划痕、斑点(dian)和(he)(he)顽(wan)固污垢,使老(lao)化、褪色(se)、失去(qu)光(guang)泽的旧漆层重获原(yuan)有迷人光(guang)泽,美观持久。高(gao)级(ji)磨砂蜡(la)集(ji)去(qu)污、抛(pao)光(guang)、划痕修复、车(che)漆保护于一体,是汽车(che)美容打蜡(la)的。沙(sha)子(zi)的用(yong)法:1。使用(yong)前(qian),请清洁车(che)身。2.使用(yong)时,用(yong)海绵或(huo)毛巾蘸取本品,反复擦拭(shi)(shi)划痕和(he)(he)污垢,直至(zhi)去(qu)除割(ge)伤和(he)(he)污垢。3.用(yong)干净的软(ruan)毛巾彻底擦拭(shi)(shi)油漆。4.用(yong)慧琳(lin)高(gao)级(ji)软(ruan)蜡(la)或(huo)高(gao)级(ji)固体蜡(la)精(jing)心护理处理过的部位,可以达到更(geng)好的光(guang)泽度。
种(zhong)(zhong)(zhong)子(zi)(zi)涂(tu)布上(shang)一层(ceng)种(zhong)(zhong)(zhong)衣剂(ji)(ji)是现代(dai)农业的标准。其作用为(wei): 由种(zhong)(zhong)(zhong)衣剂(ji)(ji)形(xing)成(cheng)的保护膜,使种(zhong)(zhong)(zhong)子(zi)(zi)整体有(you)更(geng)(geng)好(hao)的加(jia)工条件以提(ti)高(gao)(gao)生(sheng)产(chan)良率,同时(shi)种(zhong)(zhong)(zhong)衣剂(ji)(ji)保护膜对各种(zhong)(zhong)(zhong)外(wai)在(zai)影响有(you)更(geng)(geng)高(gao)(gao)的防护作用。蜡(la)乳液无毒,不含voc,对种(zhong)(zhong)(zhong)子(zi)(zi)、土(tu)壤和(he)人体均无有(you)害影响。在(zai)种(zhong)(zhong)(zhong)衣剂(ji)(ji)包(bao)覆过程中(zhong),蜡(la)粒子(zi)(zi)迁(qian)移(yi)至涂(tu)层(ceng)表面,形(xing)成(cheng)薄层(ceng)保护,提(ti)高(gao)(gao)涂(tu)层(ceng)表干(gan)速度,减(jian)少干(gan)燥成(cheng)膜过程中(zhong)种(zhong)(zhong)(zhong)子(zi)(zi)之间的粘连和(he)破损,水性(xing)(xing)(xing)蜡(la)助剂(ji)(ji)能提(ti)高(gao)(gao)种(zhong)(zhong)(zhong)子(zi)(zi)整体的耐磨(mo)性(xing)(xing)(xing)、流动性(xing)(xing)(xing)及适(shi)种(zhong)(zhong)(zhong)性(xing)(xing)(xing)。同时(shi)加(jia)入(ru)水性(xing)(xing)(xing)蜡(la)助剂(ji)(ji)能帮(bang)助涂(tu)层(ceng)的光亮度和(he)鲜艳(yan)度也(ye)有(you)提(ti)高(gao)(gao)。翁开尔(上(shang)海)国际贸易有(you)限公司为(wei)您提(ti)供(gong)水性(xing)(xing)(xing)蜡(la) 。
不同种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)类的(de)(de)蜡(la)(la)(la),不同的(de)(de)乳化工艺会(hui)制备得到各(ge)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)性(xing)(xing)(xing)能(neng)的(de)(de)水性(xing)(xing)(xing)蜡(la)(la)(la),主要的(de)(de)性(xing)(xing)(xing)能(neng)特性(xing)(xing)(xing):耐(nai)磨,耐(nai)刮,消光,高光泽,抛光,滑爽(shuang),手(shou)感,抑滑,疏水,抗粘连(lian),耐(nai)污,脱模,耐(nai)温等种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)(zi)(zi)涂布上(shang)(shang)一(yi)层种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)衣剂是现代农业(ye)的(de)(de)标准。其作用(yong)为: 由种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)衣剂形成(cheng)的(de)(de)保(bao)(bao)护膜,使(shi)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)(zi)(zi)整体(ti)有(you)(you)更好的(de)(de)加工条件以提(ti)(ti)高生(sheng)产良率,同时种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)衣剂保(bao)(bao)护膜对(dui)各(ge)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)外在影响有(you)(you)更高的(de)(de)防护作用(yong)。蜡(la)(la)(la)乳液无毒,不含voc,对(dui)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)(zi)(zi)、土壤和人体(ti)均无有(you)(you)害影响。在种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)衣剂包覆过程中,蜡(la)(la)(la)粒子(zi)(zi)(zi)迁移至涂层表面,形成(cheng)薄(bo)层保(bao)(bao)护,提(ti)(ti)高涂层表干速度,减少(shao)干燥成(cheng)膜过程中种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)(zi)(zi)之(zhi)间的(de)(de)粘连(lian)和破损(sun)。水性(xing)(xing)(xing)蜡(la)(la)(la)助(zhu)剂能(neng)提(ti)(ti)高种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)(zi)(zi)整体(ti)的(de)(de)耐(nai)磨性(xing)(xing)(xing)、流动性(xing)(xing)(xing)及适种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)性(xing)(xing)(xing)。同时加入(ru)水性(xing)(xing)(xing)蜡(la)(la)(la)助(zhu)剂能(neng)帮助(zhu)涂层的(de)(de)光亮度和鲜艳度也(ye)有(you)(you)提(ti)(ti)高。水性(xing)(xing)(xing)蜡(la)(la)(la) 翁开尔(上(shang)(shang)海)国际贸易(yi)有(you)(you)限公(gong)司获得众多用(yong)户(hu)的(de)(de)认可。天津采购(gou)水性(xing)(xing)(xing)蜡(la)(la)(la)
翁开尔(上海)国际贸易有限公(gong)司力于(yu)提(ti)供水性蜡(la) ,有想法可以(yi)来我司咨询。天(tian)津采(cai)购水性蜡(la)
皮革涂(tu)(tu)饰剂(ji)(ji),油墨(mo),光(guang)油,木器漆,水(shui)果上(shang)光(guang),造纸纸浆,水(shui)性(xing)涂(tu)(tu)层(ceng),纺(fang)织,脱(tuo)模剂(ji)(ji),人造纤维板,建筑涂(tu)(tu)料,汽(qi)车抛光(guang)等种(zhong)(zhong)(zhong)子(zi)(zi)涂(tu)(tu)布上(shang)一层(ceng)种(zhong)(zhong)(zhong)衣(yi)剂(ji)(ji)是现代农业的(de)(de)标准。其作(zuo)用为: 由种(zhong)(zhong)(zhong)衣(yi)剂(ji)(ji)形(xing)成(cheng)的(de)(de)保(bao)护(hu)膜,使种(zhong)(zhong)(zhong)子(zi)(zi)整体(ti)有更(geng)好的(de)(de)加(jia)工(gong)条件以提(ti)(ti)高(gao)生产良率(lv),同时(shi)种(zhong)(zhong)(zhong)衣(yi)剂(ji)(ji)保(bao)护(hu)膜对(dui)(dui)各种(zhong)(zhong)(zhong)外在(zai)影响(xiang)有更(geng)高(gao)的(de)(de)防护(hu)作(zuo)用。蜡(la)(la)乳液(ye)无毒,不含voc,对(dui)(dui)种(zhong)(zhong)(zhong)子(zi)(zi)、土壤和人体(ti)均(jun)无有害影响(xiang)。在(zai)种(zhong)(zhong)(zhong)衣(yi)剂(ji)(ji)包覆过程中,蜡(la)(la)粒子(zi)(zi)迁移(yi)至涂(tu)(tu)层(ceng)表面,形(xing)成(cheng)薄(bo)层(ceng)保(bao)护(hu),提(ti)(ti)高(gao)涂(tu)(tu)层(ceng)表干(gan)速度(du),减少(shao)干(gan)燥成(cheng)膜过程中种(zhong)(zhong)(zhong)子(zi)(zi)之间的(de)(de)粘连(lian)和破损。水(shui)性(xing)蜡(la)(la)助剂(ji)(ji)能(neng)提(ti)(ti)高(gao)种(zhong)(zhong)(zhong)子(zi)(zi)整体(ti)的(de)(de)耐磨性(xing)、流动(dong)性(xing)及适种(zhong)(zhong)(zhong)性(xing)。同时(shi)加(jia)入水(shui)性(xing)蜡(la)(la)助剂(ji)(ji)能(neng)帮助涂(tu)(tu)层(ceng)的(de)(de)光(guang)亮度(du)和鲜艳(yan)度(du)也(ye)有提(ti)(ti)高(gao)。天津采购(gou)水(shui)性(xing)蜡(la)(la)
本(ben)文来自海润达(da)物联科技有限(xian)责任公司(si)://qfd1mz.cn/Article/55f9099854.html
南京污水池废气处理
专业(ye)的(de)服(fu)务团(tuan)(tuan)队:废气治(zhi)理(li)厂(chang)家通常拥有专业(ye)的(de)服(fu)务团(tuan)(tuan)队,为客户提(ti)供各方(fang)面的(de)服(fu)务支持。包(bao)括前期咨(zi)询、方(fang)案设计、设备安装、调试和维(wei)修等(deng),确保(bao)设备正(zheng)常运行(xing)并达到好的(de)处(chu)理(li)效果(guo)。注(zhu)重环保(bao)和社(she)会责任:废气治(zhi)理(li)厂(chang)家关注(zhu) 。
不(bu)锈(xiu)钢(gang)(gang)(gang)接(jie)头(tou)(tou)酸洗常见的(de)方(fang)式(shi),不(bu)锈(xiu)钢(gang)(gang)(gang)接(jie)头(tou)(tou)酸洗钝化(hua)可保(bao)护不(bu)锈(xiu)钢(gang)(gang)(gang)管件防磨蚀。不(bu)锈(xiu)钢(gang)(gang)(gang)的(de)耐(nai)腐(fu)蚀性主要(yao)是(shi)因为在(zai)钢(gang)(gang)(gang)中添加(jia)了较高含量的(de)Cr元(yuan)素如316LWCr)=16.00~18.00),Cr元(yuan)素易于氧化(hua),能在(zai)钢(gang)(gang)(gang)的(de)表面 。
钢(gang)带(dai)(dai)箱是(shi)一(yi)种(zhong)采(cai)用(yong)(yong)强(qiang)大度钢(gang)带(dai)(dai)制(zhi)(zhi)造的(de)包(bao)装(zhuang)箱,具有(you)出(chu)色的(de)耐用(yong)(yong)性(xing)(xing)和(he)抗压(ya)能力。它(ta)适用(yong)(yong)于各种(zhong)重(zhong)型和(he)脆弱(ruo)物品的(de)包(bao)装(zhuang),为(wei)重(zhong)要(yao)物品提供(gong)保护。钢(gang)带(dai)(dai)箱的(de)制(zhi)(zhi)造工艺经过严格把控(kong),确保箱体的(de)稳(wen)定性(xing)(xing)和(he)坚固性(xing)(xing)。它(ta)具备防尘、防水(shui)和(he)防盗 。
劳务外包可以(yi)帮助企(qi)业(ye)整合全球资(zi)源(yuan),通过(guo)与国内的(de)(de)外包公(gong)司合作,企(qi)业(ye)可以(yi)获得更普(pu)遍的(de)(de)资(zi)源(yuan)和(he)市场机会(hui)。劳务外包还可以(yi)为企(qi)业(ye)带来创新和(he)专业(ye)知识(shi),外包公(gong)司通常具有丰富(fu)的(de)(de)行业(ye)经验和(he)专业(ye)知识(shi),可以(yi)为企(qi)业(ye)提供新的(de)(de)思路 。
喷(pen)煤(mei)粉卸(xie)灰(hui)球阀(fa)的(de)工作性能(neng):1.密(mi)(mi)封(feng)性能(neng)喷(pen)煤(mei)粉卸(xie)灰(hui)球阀(fa)的(de)密(mi)(mi)封(feng)性能(neng)是卸(xie)灰(hui)装置中的(de)重要指标。由于卸(xie)灰(hui)时需(xu)要抗高温、耐(nai)磨、耐(nai)腐蚀(shi)等特(te)性,因此对密(mi)(mi)封(feng)圈材料的(de)要求非常(chang)高。一般采用(yong)橡胶(jiao)制成(cheng)的(de)密(mi)(mi)封(feng)圈,其(qi)密(mi)(mi)封(feng)性能(neng)可(ke)以达(da) 。
当前世界各国所使(shi)用(yong)的25Cr2Mo1V轴(zhou)承(cheng)钢主要(yao)有5大类du,即高碳(tan)铬25Cr2Mo1V轴(zhou)承(cheng)钢、zhi渗(shen)碳(tan)25Cr2Mo1V轴(zhou)承(cheng)钢、不锈(xiu)25Cr2Mo1V轴(zhou)承(cheng)钢、高dao温(wen)25Cr2Mo1V轴(zhou)承(cheng)钢、中 。
精(jing)雕机(ji)的(de)(de)工作原理是利用高(gao)精(jing)度数控技术(shu),将刀具和(he)工件固定在机(ji)器的(de)(de)工作台(tai)(tai)上,通过计算机(ji)程序控制工作台(tai)(tai)的(de)(de)移动和(he)刀具的(de)(de)旋转,实现高(gao)精(jing)度的(de)(de)雕刻(ke)和(he)切割。在精(jing)雕机(ji)的(de)(de)工作过程中,计算机(ji)程序会根据预设的(de)(de)图形或指令,控制 。
THX110RJ11V系列信(xin)号防雷(lei)器应(ying)用场所(suo):应(ying)用于双绞线(xian)语音线(xian)路和ISDN\DDN等(deng)专线(xian)传输,其接口形(xing)式采用RJ11转换的设备的浪涌保护。使用区域(yu):用于LPZ0B区至后续保护。订货(huo)信(xin)息:23103产 。
断(duan)路器的结构和(he)(he)工作原(yuan)理(li)真(zhen)空(kong)断(duan)路器的生产(chan)厂家比较(jiao)多,型(xing)号也较(jiao)繁杂。按使用条件(jian)分为(wei)户内和(he)(he)户外两种类(lei)型(xing)。主(zhu)要由框架部(bu)分,灭弧(hu)室部(bu)分(真(zhen)空(kong)泡),和(he)(he)操动(dong)机构部(bu)分组成。断(duan)路器本体部(bu)分由导电回路,绝(jue)缘(yuan)系统,密封件(jian)和(he)(he) 。
运动(dong)(dong)泡(pao)(pao)沫器材(cai)(cai)是一种常见的(de)(de)(de)运动(dong)(dong)辅(fu)助器材(cai)(cai),主要用(yong)于运动(dong)(dong)前(qian)后的(de)(de)(de)热身和放松,以及运动(dong)(dong)中的(de)(de)(de)支(zhi)撑和保(bao)护。根据(ju)不同的(de)(de)(de)形状(zhuang)和材(cai)(cai)质(zhi),运动(dong)(dong)泡(pao)(pao)沫器材(cai)(cai)可以分为(wei)以下(xia)几种:1.泡(pao)(pao)沫滚(gun)(gun)轴:泡(pao)(pao)沫滚(gun)(gun)轴是一种长(zhang)条形的(de)(de)(de)泡(pao)(pao)沫器材(cai)(cai),通常用(yong)于按(an) 。
瓷(ci)(ci)器(qi)是一种易碎的(de)(de)(de)商品,运输过程(cheng)中(zhong)很容易受(shou)到(dao)损坏(huai),因此,瓷(ci)(ci)器(qi)包(bao)装的(de)(de)(de)主(zhu)要(yao)(yao)目的(de)(de)(de)是保(bao)护瓷(ci)(ci)器(qi)免受(shou)外(wai)界(jie)因素的(de)(de)(de)影响,确(que)保(bao)瓷(ci)(ci)器(qi)在运输、储存和(he)使用(yong)过程(cheng)中(zhong)的(de)(de)(de)安全(quan)。海(hai)绵内衬作为瓷(ci)(ci)器(qi)包(bao)装的(de)(de)(de)重(zhong)要(yao)(yao)组成部分,其主(zhu)要(yao)(yao)作用(yong)是缓冲和(he)吸收 。