冲击作用
percussion───n.[临床]叩诊;振动;碰撞;敲打乐器;打击乐器组
percussion meaning───打击意义
percussion family───打击乐器家族
percussion massager───叩诊按摩器
percussion cap───n.雷管; 火帽;雷管;火帽
percussion gun───冲击枪
percussion source───冲击源
action───n.行动;活动;功能;战斗;情节;<非正式>精彩活动;n.(Action)(英)埃克申(人名)
percussion definition───撞击定义
Currently, the DTH RIGS use generally a percussion rotary penetration sys-tem to generate the rotating torque that produces a shearing action for breaking rock.───目前,潜孔钻机普遍采用冲击回转凿入系统,用以产生回转力矩,对岩石产生剪切作用而成颗粒分离。
This striking action is why the piano is a percussion instrument instead of a string instrument.───这个敲击的动作就可以解释为什么钢琴是打击乐器而不是弦乐器。
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