例句與造句

1. Specification for impervious graphite pipe and threading
   抗?jié)B石墨管和螺紋的規(guī)范
2. Standard specification for impervious graphite pipe and threading
   不透水的石墨管和插片標準規(guī)范
3. It's difficult to find graphite pipe in a sentence. 用graphite pipe造句挺難的