water proof造句

1、Coating bamboo with a solution of celluloid in acetone does not exert a water proof effect greatly.
用赛璐珞的 * 溶液涂布竹材，其防水效力增加不多。

2、Only the new device is housed in sealed water proof case.
只有这种新装置才具有密封防水的外壳。

3、It's a 'ring' where I glue water proof polish paper P4000 on.
这是一个'环'我胶水防水波兰文件p 4000上。