directional tendency
... directional tendency 方位趋势 directional tool 随钻测斜仪 directional turbodrill 定向涡轮钻具 ...
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重力位趋势方程 geopotential tendency equation
·2,447,543篇论文数据，部分数据来源于NoteExpress
通过书院学研究的回顾，对其发展趋势和现实意义展开多方位的思考。
Through reviewing academy study, we can carefully think about its tendency and significance.
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