bonded gravel screen
被耦合的砾石滤网
High angle gravel packed well
砾石充填大斜度井
Clay, silt, sand, and gravel.
粘土，粉砂，砂土和砾石。
exposed gravel aggregate panel
露明砾石板
The water burbled over gravel.
水流过卵石，汩汩作响。
The water is infiltrating the gravel bed.
水正渗透进碎石底层。
The mix consists of sand, gravel and cement.
混合物是由砂, 卵石, 水泥所构成。
fine gravel concret, fine aggregate concrete.
细石混凝土
The clear, bright water chuckled over gravel.
清澈晶滢的水从砂砾上汩汩地流过去。
Layered gravel and charcoal to make a filter.
将砂砾和木炭分层以做成过滤器
The sand fills up the spaces between the gravel.
沙子填满了碎石间得空隙。
Sand and gravel may form bars within the channel.
沙和砾石可以在沟槽内形成沙洲。
The phenomenon of sediment or gravel accumulating.
沙砾或沉淀物聚集的现象。
Natural sandy gravel used in artificial foundation
浅谈天然砂砾石在人工地基中的应用
Detritus usually consists of gravel, sand and clay.
岩屑通常是由砂砾，沙和粘土组成的。
Gravel banks along rivers are always light or white.
河流得砾石滩始终为浅色或白色。
Gravel and cement unite with water to form concrete.
砾石, 水泥和水合起来就成了混凝土。
And in Arizona, of course, everybody puts gravel down.
在亚利桑那州，大家回理所当然的铺上碎石子。
Their boots crunched loudly on the frozen gravel drive.
他们的靴子踏过冰冻的碎石路时发出很大的嘎吱声。
Soft and clay Sand and gravel up to very dense Weak rock
硬塑粘土，砂岩致密卵砾石层强风化岩土和复杂地层
Pour some gravel into the bottom of your pot for drainage.
倒些沙砾在你地里的底部以用来排水。
A rock consisting of pebbles and gravel embedded in cement.
砾岩由水泥固结的卵石和砾石形成的砾岩
He picked up a handful of gravel and drew back arm to throw.
他抓起一把石子，扬起胳膊就要扔。
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