早些时候，在建设约翰带来了顶螺栓，这是他所表示的。

Earlier in the build John brought up Jacking bolts and this is what he means by it.

youdao

我的名字是…… 儿子轮胎内胎发电机启动机千斤顶螺栓螺帽天真热。

My name is …. son tyre tube generator starter jack bolt nut It is so hot.

youdao

然后，这些部件可以用多种方法顶出，如升降机、凸轮、架台、提升阀、螺栓结构和汽缸结构。

Then these parts are ejected with a variety of lifters, cams, racks, poppit valves, screws, and cylinders.

youdao