1. 锤击：摩擦尖叫噪声是一个涉及多学科交叉知识的问题 ,学术界提出 了6个摩擦噪声发生机理曲,分别为:粘一滑机理,摩擦力一相对滑动速度负斜率机理,自锁 一滑动(sprag.slip)机理,模态耦合机理,双模态分离(splitting the doublet modes)机理和锤击(hammering)机理.

2. 锻造：hammerforging 锤锻 | hammering 锻造 | hammermill 锤磨机

3. 锤打：hammering test 锤击试验 | hammering 锤打 | hammering 锻

4. 锤锻：hammer scale 锻造氧化皮 | hammering 锤锻 | hand adjustment 手动蝶

noun

1. the act of pounding (delivering repeated heavy blows)

e.g. the sudden hammer of fists caught him off guard
the pounding of feet on the hallway

Synonym: hammerpoundpounding