Plastic bottle and sand or gravel.
塑料瓶，沙子和小石子。
沙子比碎石细。
The workmen mixed sand, gravel, and cement to make concrete.
工人们把沙，石子和水泥混和成混凝土。
Sand and gravel may form bars within the channel.
沙和砾石可以在沟槽内形成沙洲。
Concrete consists of cement, sand and gravel, mixed with water. .
混凝土是水泥、沙子和碎石加水构成的。
Concrete is made of cement, sand, and gravel mixed with water.
混凝土是由水泥、沙子和碎石并和水混合而成的。
P92 Concrete is a mixture of water, sand and gravel, and Portland cement.
混凝土是由水、沙和砾石、波特兰水泥拌合而成。
填满了泥土或砂砾的。
The gravel packing in casing is a effective method to prevent sand production.
套管内砾石充填防砂是一种行之有效的防砂方法。
The sand and gravel in the Yangtze river is good building and filling materials.
长江中下游干流河道内的砂石是较好的建筑和填筑材料。
The sand went into all of the Spaces left between the rocks and the gravel.
细沙填满了大石头和碎石之间的所有空隙。
Concrete is composed of cement, sand and gravel mixed with water.
混凝土由水泥、砂、石子与水掺和而构成。
For digging holes of construction ground work, chasm digging and mud, sand. Coal. gravel loading.
建筑地基的基坑挖掘、深坑挖掘及泥、沙、煤、碎石的装载。
Sometimes I go to the gravel pit and roll around in the sand.
有时我会到沙坑里在沙里翻滚取乐。
The channel is filled with noncompactible sand, or with sand and gravel.
巴士海峡以西海区沉积物较粗，常含砂岩块和砾石；
The mix consists of sand, gravel, and cement.
混合物是由砂、卵石、水泥所构成。
They went along to the gravel-pit, and Robert began to kick 26 the sand angrily.
他们一起向砾石坑走去；罗伯特开始生气地踢沙子。
They went along to the gravel-pit, and Robert began to kick 26 the sand angrily.
他们一起向砾石坑走去；罗伯特开始生气地踢沙子。
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