In the empty jar place several steel ball bearings.

在空罐子里放着几个钢球轴承。

He points to a computer file that instructs 3D printers to make a plastic encasement full of ball bearings.

他着一个计算机件，该件示 3D 打印机制作一个装满滚珠轴承的塑料外壳。

As a coating on raincoats, industrial ball bearings, artificial joints, circuit boards, and even the Rocky Mountains-themed roof of the Denver International Airport.

雨衣上的防水层，工业球支座，人工关节，电线板，甚至丹佛国际机场的落基山脉主题屋顶。

He baked bread with a ballpen in one hand and a ball bearing in the other hand to keep balance.

他烘面包时，一手拿着圆珠笔一手拿着滚珠轴承来保持平衡。

Let's try it out with one of these luscious ball bearings, not forgetting to spoon over some of that flavorful machine oil.

们用这些甘美的滚珠轴承之一来尝试一下，别忘了舀上一些美味的机油。

In this test, the ball bearing penetrated the skin, piercing the liver, and travelling all the way through the rest of the body...

在此测试中， 滚珠轴承穿透皮肤， 刺穿肝脏， 并一路穿过身体的其余部分. . . . . .

More recent archaeological hypotheses have them transporting the bluestones with supersized wicker baskets on a combination of ball bearings and long grooved planks, hauled by oxen.

最近的考古假设认为，他们用滚珠轴承和长槽木板组合而成的超大柳条篮运输青石，并由牛拉动。