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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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wages and salaries indexation
wages and salaries in kind
wages and salaries payable
wages and salsries book
wages and welfare
wages appropriate to posts
wages appropriate to specific posts
Wages are out of step with the cost of living
Wages are paid on Fridays
Wages are paid weekly
wages assignment
wages based on benefits
wages based on work quotas
wages bill
wages book
wages by piece
wages by the piece
wagescale
wage scale
wage scale based on work ranks
wage scales
wage scale system
wage schedule
wage schedules
wage scheme
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更新时间:2025/5/8 16:41:22