sample feed pump造句

例句与造句

1. The explosion-proof housing, sample feed pump are installed in a freestanding sheet-steel cabinet .
   防爆箱、试样进料泵都装在独立的钢板箱内。
2. Sample feed pump
   样品供给泵
3. It's difficult to find sample feed pump in a sentence. 用sample feed pump造句挺难的