虽然南美洲土生土长的雨林居民世代使用橡胶这种东西，可是直到1839年橡胶才在工业化世界中得到了最早的实际运用。
Though indigenous rainforest dwellers of South America have been using rubber for generations, it was not until 1839 that rubber had its first practical application in the industrial world.
天然橡胶是一种世界性的大宗工业原料，其中轮胎企业的用量要占天然橡胶消费量的一半以上。
Natural rubber is a kind of world large quantity industrial raw material, among which tire enterprises occupy the majority consumption of natural rubber.
在过去的50年中，在合成橡胶工业美国French Oil公司已成为世界领先的螺旋压榨机械的供应商。
For the past 50 years French has been the world's leading supplier of mechanical screw presses for the synthetic rubber industry.
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