铝筒的英文：
n. aluminum barrel

aluminum是什么意思：
n. 铝（美式拼写单词）

But its backside is made of aluminum.
但是它背面是铝制的。

Today, the uses of aluminum are innumerable.
今天铝的用途多得不可胜数。

It was a terylene diaphragm coated with a layer of aluminum.
它利用一个镀有铝层的涤纶膜片。

Copper and aluminum are good conductors of heat and electricity
铜和铝是热和电的良导体

Good adhesion to steel, galvanized steel and aluminum alloy.
对钢铁、锌钢材及铝合金有良好的附着力。

barrel是什么意思：
n. 桶；一桶的量；枪管
v. 装进桶里；快速移动

The cement is barreled.
水泥已经装桶了。

A barrel stave.
桶板

It is a fountain pen barrel.
这是钢笔杆。

Barrel Roller Zombie can roll over and destroy plants with its barrel.
滚桶僵尸可以用它的桶滚过并毁掉植物。

They barreled like mad to catch the bus.
他们飞奔赶上公共汽车。