The table tennis three treasure are variety of the combinatorial techniques; the all-round hitting point and inverse direction techniques, which play important role in the competition.
中国乒乓球队制胜因素即“三件宝”是指技术组合的多样化、击球点的全面性以及反方向技术的应用能力，这三个方面对取得比赛的胜利起着关键的作用。
As an example of inverse plumb surveying point IP13BZA in the Three Gorges dam horizontal displacement monitoring net, this paper demonstrates how to calculate it with this method.
以三峡工程水平位移监测全网(基点检验网)倒垂测点IP13BZA为例，给出了相应的计算示例。
As an example of inverse plumb surveying point IP13BZA in the Three Gorges dam horizontal displacement monitoring net, this paper demonstrates how to calculate it with this method.
以三峡工程水平位移监测全网(基点检验网)倒垂测点IP13BZA为例，给出了相应的计算示例。
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