This technique adds sulfur to superheated raw rubber to create a material that's both elastic and sturdy.

该技术将硫添加到过热的生橡胶中以创造出有弹性且结实的材料。

This technique adds sulfur to superheated raw rubber to create a material that’s both elastic and sturdy.

该技术将硫磺添加到过热的生橡胶中，以制造出既有弹性又坚固的材料。

They started rubber plantations in countries with hot, wet weather conditions, but these still could not give enough raw rubber to meet the needs of growing industry.

他们在气候炎热潮湿的国家开办了橡胶种植园，但这些种植园仍然无法提供足够的生胶来满足不断增长的工业的需求。