The bottom of the cradle is provided with a metal bush (5) so as to guide a rotating shaft (3).

在锭座的底部装有一个金属轴瓦(5)用来给转轴(3)进行导向。

youdao

Bottom line: The Bush Administration's current course is headed toward political disaster.

FORBES: Fact and Comment

Bottom line: Will Bush's numbers now shoot back up?

NPR: Andy Card Leaves a Stacked Deck

But despite the errors, the bottom line is that Bush's bold gamble to recast the destructive politics of the Middle East will work, especially if Iraq's December national legislative elections go well, as is likely.

FORBES: Fact and Comment