covering layer 覆盖层 ; [包装] 保护层 ; 笼罩层 ; 保嗫层
concrete covering-layer 混凝土覆盖层
linoleum floor covering layer 油毡地板覆盖铺设者
asphalt covering layer 沥青加铺层
Physical characteristics of covering layer 覆盖层物理性能
rubber covering layer 橡胶覆盖层
wood floor covering layer 木地板覆盖铺设者
critical covering layer 临界保护层厚度
covering layer thickness 保护层厚度
In the angiosperm the seeds are wrapped in an additional layer of covering.
被子植物的种子被另一层覆盖物包裹着。
Because fresh water is lighter, care had to be taken not to draw down the lake too much in any given year lest the covering layer of fresh water becomes too light to hold the salt water down.
因为淡水比重较轻，所以每一年从湖中取水都需要慎之又慎，否则顶层淡水过少会无法覆盖咸水。
The façade consists of prefabricated wooden elements with an HLK ventilated covering layer of fibre cement slabs.
立面由预制木元素的HLK通风覆盖层纤维水泥石板组成。
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