mechanism

The locking mechanism of the safe requires a six-digit code and a physical key.

(Chinese) 保险箱的锁定机构需要一个六位数的代码和一把物理钥匙。

An antique clock uses a complex mechanism of gears and springs to keep time.

(Chinese) 古董钟使用复杂的齿轮和弹簧机构来计时。

The body has a natural defense mechanism that produces white blood cells to fight infection.

(Chinese) 身体有一套自然的防御机制，通过产生白细胞来对抗感染。

The UN established a formal mechanism for monitoring the peace treaty's implementation.

(Chinese) 联合国建立了一套正式机制来监督和平条约的执行情况。