n. coffer
misc. closing piece
将烤板放在冰箱里直到莓子冻上，然后再把它们放进密闭容器中。
Place the cookie sheet in the freezer until the berries are frozen, then pack the berries in airtight containers.
前言： 对“板闭和杠子墙”临时密闭进行了介绍。
The paper introduces temporary airtights with board close and beam wall.
冲孔天花板背面加入隔音纸或者隔音棉，有助于增加整个密闭空间的总吸收量，降低噪音给我们带来的影响。
With the acoustic paper or sound proof cotton , the punch ceiling increase absorption capacity of whole closed space and the noise reduction can alter the impact .
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