vulcanize

1.It is an important organic chemical material and widely used in many fields, dyestuff, medicine, detonator, spicery and rubber-vulcanize accelerant etc.

能起卤化、重氮化等反应。

2.It is common knowledge now that the way to make rubber hard and strong -- to "vulcanize" it, as we say -- is by heating it with sulphur.

要使橡胶硬而结实的方法——也就我们所说的“硫化”——就要掺入硫磺加热，这一点现在常识了。