螺母

yī gè luó mǔ diàn quān

一个螺母垫圈

a nut collar

luó mǔ chē chuáng

螺母车床

nut lathe

luó mǔ yǒu xiē sōng zài jǐn yī xià

螺母有些松，再紧一下。

The nut is a little bit loose, and give it another screw.

jìn zhǐ shǐ yòng chōng jī luó shuān bān shou lái nǐng jǐn luó mǔ

禁止使用冲击螺栓扳手来拧紧螺母。

Never use an impact bolter to tighten the fastening nut.

wǒ men yòng zhè xiē luó mǔ hé luó shuān bǎ lún zi gù dìng zhù le

我们用这些螺母和螺栓把轮子固定住了。

We use these nuts and bolts to hold the wheels on.