英语词汇layer of gravel怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	layer of gravel
释义	layer of gravel 简明释义砾石层：指由砾石组成的一层地层。网络释义 1 ?砾石层砾石层短语 1 layer of coarse gravel 粗石层 2 layer of sand and gravel 砂卵石层双语例句 1 It is wise to start infilling with a layer of gravel for drainage. 先铺上一层利于排水的砾石是个明智的做法。 2 Then a layer of gravel and a little water was applied and trampled solid. 然后铺一层砾石并洒上少许水用来踩实。 3 For the ground floor, the flat concrete roof has a layer of gravel to prevent heat from entering the building. 对于一层来说，混凝土平屋顶有砾石层防止热量进入建筑。
随便看	intermediate frame intermediate franchise intermediate freight intermediate frequence intermediate frequency intermediatefrequency intermediate frequency amplification intermediate-frequency amplifier intermediate frequency amplifier intermediate frequency amplifier (ifa) intermediate frequency attenuator intermediate frequency bandwidth intermediate frequency ceramic filter intermediate frequency channel intermediate-frequency combustion instability intermediate frequency contactor intermediate frequency distortion intermediate frequency electric power system intermediate frequency filter intermediate frequency furnace intermediate frequency gain intermediate frequency gain control intermediate frequency gene intermediate-frequency gene intermediate frequency generating set

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