例句與造句

1. Rubber compounding ingredients - test methods - part 2 : organic accelerators and vulcanizing agents
   橡膠配合材料.試驗(yàn)方法.第2部分:有機(jī)催化劑和硫化試劑
2. It's difficult to find vulcanized agent in a sentence. 用vulcanized agent造句挺難的