Pipes may be made of metal, cement, plastic, or bamboo.
水管可以由金属、水泥、塑料或竹子制成。
The top and bottom ends of the containers may be made of metal or plastic.
在容器的顶部和底部的材质可为金属或塑料制成。
The reinforcing member may be made of metal or a carbon composite material.
加强件可由金属或碳纤维复合材料材料制成。
They can also be made of plastic, animal bone or metal.
它们也可以由塑料、动物骨头或金属制成。
In fact, most things made of paper, metal, glass and plastic can be recycled.
事实上，大多数由纸、金属、玻璃和塑料制成的东西都可以被回收利用。
It seemed to be made of grey metal, shiny but rough, like emery paper.
它看起来像是由灰白色金属制成，有光泽但很粗糙，质感如砂纸。
What if the blade could be made of a thin metal strip?
为什么不用薄的金属片来做刀刃呢？
Coins can be made of many different kinds of metal mixed together.
硬币可由很多种不同的金属混合在一起制成。
Crochet hooks and knitting needles can be made out of metal, plastic, or wood.
钩针和织针可用金属、塑料、木材做成。
Third, pulley may be made of cast iron, sheet stell, or die-cast metal.
第三，带轮可以用铸铁、钢、锻压等材料制成。
The door and parts of the fixed part may be made of perforated sheet metal.
门和固定部分的多个部分可由穿孔金属板制成。
Walls can be made of wood, plastic or metal.
墙体可采用木材，塑料或金属。
The metal can be made to thread or the shape of any necessaries.
金属能制成金属线或任何需要的形状。
The metal can be made to thread or the shape of any necessaries.
金属能制成金属线或任何需要的形状。
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