| 单词 | 密封材料 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔caulk〕He filled the cracks with caulk.他用密封材料填补裂缝。韦氏高阶〔encapsulant〕A material used for encapsulating.胶囊密封材料：用来包裹的胶囊状物质美国传统〔propolis〕A resinous substance collected from the buds of certain trees by bees and used as a cement or sealant in the construction of their hives.蜂胶：蜜蜂采自某些树的花的胶状物，在建筑蜂窝时用作加固或密封材料美国传统〔undercoat〕A coat of sealing material applied to a surface before the outer coats, as of paint, are applied.内涂层：在上漆或其它涂层之前涂于表面的密封材料美国传统Doors and windows don't close tightly unless they have a good seal on them.门窗上若不加优质的密封材料就不能紧闭。剑桥国际 |
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