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词汇
乒乓球运动
释义
乒乓球运动
pīng pāng qiú yùn dòng
双方站在中隔横网的球台两端,用球拍轮流击球过网的一项球类运动。球台长274厘米,宽1525厘米,高76厘米。网长183厘米,高1525厘米。球用塑料制成,直径372~382毫米,重240~253克。球拍为木制,上粘胶皮。双方采用发球和推、拉、抽、削、搓、挡等技术互相攻守,使球落在对方台面上。球在台上反弹一次后方能还击。比赛采用五局三胜或三局二胜制,每局21分。
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low-noise and low-vibration electric machine
Low Noise and Smooth working
low noise and vibrication
low noise antenna
low-noise antenna
low noise arnplifier
low noise assembly
low noise axial fan
low-noise axial fan
Low noise Bandgap reference
low noise bearing
low-noise bearing
low noise blockconverter
low-noise blockdownconverter
low noise block down-converter
low noise cable
low-noise cable
low-noise cathode
low noise channel
low-noise characteristic
low noise charge sensitive preamplifier
low noise circuit
low noise conductor
low-noise connector
low noise crystal oscillator
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更新时间:2025/10/25 8:21:13