pech
美式发音: 英式发音:网络释义:环氧氯丙烷;岩精;环氧氯丙烷低聚物
复数:pechs 过去分词:peched 现在分词:peching网络释义
n.1.a short, fast, and forceful breath
v.1.to pant or struggle for breath from exertion
1.环氧氯丙烷为催化剂,进行环氧氯丙烷阳离子开环聚合,合成端羟基环氧氯丙烷聚醚(PECH)。
7.环氧氯丙烷二醇原料,首先通过阳离子开环聚合合成出中间产物(Ⅰ)聚环氧氯丙烷二醇(PECH),然后用PECH封端TDI,制备出端基为氯醇基团的 …
造句带翻译释义:,环氧氯丙烷,岩精,环氧氯丙烷低聚物1.It is discovered through experiment that treating PECHs with different relative molecular mass should use different extraction solvents.实验表明,处理不同相对分子质量的PECH,应采用不同的萃取溶剂。
2.The hydroxy value of hydroxy-terminated polyepichlorohydrin (PECH) is a very important index which influences many properties of PECH.端羟基聚环氧氯丙烷(PECH)的羟值是影响其性质的重要指标。
3.The results demonstrated that PECH-DMA could greatly enhance the removal efficiency of NTU and organic substances.结果表明:助凝效果明显,浊度和有机物的去除效果都得到明显提高。
4.Pech Valley, Afghanistan: As darkness falls a US soldier smokes a cigarette before getting into his armored vehicle for a night patrol佩赫谷,阿富汗:夜幕降临,一个美国士兵在进入装甲车夜巡前吸烟。
5.Experimental Study on Sedimentation Water Quality Improvement in Pech-David Water Plant in Toulouse in France改善法国图卢兹自来水厂沉淀池出水水质的实验研究
6.A Study on the Modification of Cellulosic Fibers with Low Molecular Weight and Moderate Nitrogen Content of PECH-amine低分子量、含氮量适中的聚环氧氯丙烷胺化物对纤维素纤维改性工艺的研究