lead coil造句

例句与造句

1. Each layer of pots was covered by a new layer of tan, then another layer of pots . the heat created by the fermentation, acetic acid vapor and carbon dioxide within the stack did their work, and within a month the lead coils were covered with a crust of white lead.
2. It's difficult to find lead coil in a sentence. 用lead coil造句挺难的