safety catch

安全制动装置
安全挡块
安全掣子
安全挡
断绳保险器防坠器

例句与用法:

The new law about safety belts in cars will be difficult to enforce.

规定系汽车安全带的新法规将难以实施。

Thanks to I had tied then the safety belt.

幸亏我当时系上了安全带。

She refused to sit in the car till her husband promised to wear his safety belt.

她拒绝上车,除非她丈夫答应系好安全带。

词形变化:

名词复数: safeties |

详细释义:

ph.

(枪、炮等的)保险机, 保险栓