例句與造句

1. Test method for nonvolatile residue of polymerization grade butadiene
   聚合丁二烯中不揮發(fā)性殘?jiān)脑囼?yàn)方法
2. Standard test method for nonvolatile residue of polymerization grade butadiene
   聚合級(jí)丁二烯中不揮發(fā)性殘余物的標(biāo)準(zhǔn)試驗(yàn)方法
3. It's difficult to find polymerization grade in a sentence. 用polymerization grade造句挺難的