door lock with knob
常见例句
- The efficient patented-designed progressive door lock is more convenient than the traditional handwheel door lock; user can gently turn the knob to open or lock the door with ease.
采用专利设计的高效渐进式门锁铰，摒弃了传统惯用的手轮式门锁铰，操作者只需扳动一、两下门把手，便可锁门或开门，方便实用。
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