1、It's important to put a lock washer on that last nut, or it can work loose.
重要的是要在最后一個(gè)螺母上安裝一個(gè)防松墊圈，否則它會(huì)逐漸變松。

2、Aurora only USES lock washer or embroidered eyes and nose for safety.
極光只使用墊圈或繡眼睛和鼻子的安全。

3、Only lock washer or embroidered eyes and nose are used for safety.
只有墊圈或繡眼睛和鼻子被用于安全。

lock washer翻譯