A synthetic rubber made from the polymerization of butadiene sodium.丁二烯的衍生物,用于聚合制成氯丁橡胶.Nickel fastens butadiene rubber product to already achieved international banner level.镍系顺丁橡胶产品已达到国际领先水平.The current offset press on ...
这些分子链彼此缠绕，形成缆线状的结构。These strands of molecules twine around each other to form cable-like structures.他们手脚并用，爬上了一片成陡直梯田状的橄榄林外面的石头围墙。They clambered up the stone walls of a steeply terraced olive grove.他的头发精心地梳成了波浪状的卷发。His h...
He is one of this country's top professional sportsmen.他是本国的顶级职业运动员之一。He is one of this country's top professional sportsmen.他是本国的顶级职业运动员之一。The sportsmen are determined to be a credit to their country.运动员们决心为国增...
This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources.本章论述几种有关各种排放源的大气污染物浓度分布的估算方法.A pre - dicing method for calculating the distribution of ...