metals

n. 五金
名词metal的复数形式

例句与用法：

Various metals are used to make the parts of this machine.

这部机器的零件是用多种金属制造的。

Metals are eroded by acids.

金属易为酸所腐蚀。

Copper and gold are both metals.

铜和金都是金属。

Metals undergo expansion when heated.

金属加热时会膨胀。

Some metals weld better than others.

有些金属容易焊，有的不容易焊。

Memory has been shown to reside in some metals.

已经证实，记忆存在于某些金属中。

A clamping device of metal or wood, usually consisting of two jaws closed or opened by a screw or lever, used in carpentry or metalworking to hold a piece in position.

虎钳由金属或木头做成的钳夹工具，通常由两个靠螺旋或标杆进行开合的部件组成，用于木工业或五金业中使物件定位

Metals expand when they are heated.

金属遇热则膨胀。