clay-sealed cover 泥封盖子
Food containers with sealed cover 密封食物桶
half-sealed cover 半密闭罩
double-sealed cover 复式封盖
strap double layer sealed cover 皮带双层密闭罩
Sealed tank cover 密封箱盖
COVER OF SEALED BOX 密封箱盖
Sealed cover, perpendicular fifter Vance, compact structure, few movable parts, convenient to maintenance.
机壳密闭、垂直滤叶，结构紧凑，易维修保养。
The alternative way to do this is to cover the plates in a sealed plastic bag and put it in the salt water.
可供选择的方法是把板子（锌板）放入密封的塑料袋中再把它放入盐水中。
The pit cover should be sealed over with tar paper or plastic.
顶盖必须用焦油纸或塑料封闭。
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