The sealing structure and principle of hollow metal O-ring was introduced.

介绍了金属空心o形圈的密封结构和密封机理。

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Spinning in metalwork, a technique for making hollow metal utensils and artifacts.

金属制品中一种制作空金属容器和人造物品的技术。

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A hollow metal rod with a heavy rubber tip or tips that is wielded and twirled by a drum major or drum majorette.

鼓手挥舞使用的，顶端是厚橡皮的中空的金属棒。

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To analogize, you can have parts as diverse as rubber tires, computer circuits, hollow metal tubes, plastic and metal panels, leather, and a variety of fluids and end up with a car.

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Denby resident Phil Butt, 43, said the problem with noise was because the ramp was metal and hollow, but the council had fixed that by adding a foam padding.

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Objects which hitherto had to be cast in solid metal can be manufactured as hollow shapes, reducing their weight and the amount of precious metal used.

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