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橡胶本是一项很重要的军用物资。在二次世界大战期间,日本人曾经利用她优越的战略地位与初期的优势配备,一举而囊括了那盛产橡胶的西南太平洋诸岛;遂使反轴心国家顿时深刻地感觉到因缺乏这项物资而可能肇致的危机。美国的科学家们为了弥补这项遗憾起见,就赶紧发明了一种人造橡胶的方法。这种人造橡胶的商业名称,是叫做Th-iokol。从化学成份上看来,它乃是一种多硫化物(Polysulphide)。它具有充份的弹性,它能够被拉得很长,它能够抵抗汽油、机油,乃至其他普通有机溶剂的侵溶。
Rubber is a very important military material. During the Second World War, the Japanese used her superior strategic position and advantages in the early stages to cover the rubber-rich islands of the southwest Pacific in one stroke; this made the anti-axis state suddenly feel the lack of this Material and possible crisis. To compensate for this regret, American scientists quickly invented an artificial rubber method. The commercial name of this elastomer is called Th-iokol. Chemically, it is a polysulphide. It has sufficient elasticity, it can be pulled very long, it can resist gasoline, oil, and even other common organic solvents.