... 刚度比ratio of rigidity 与水平线夹角included angle with level line 7楼(Redfox_x):I am learning. ...
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喷氨孔与水平线的夹角是影响这一过程的重要因素，本文对夹角的确定进行了理论分析。
The Angle, between ammonia flow and horizontal line, is so critical to affect the above - mentioned action. A calculating way for the Angle is discussed theoretically.
在同一铅垂面内，当视线在水平线上方时，视线与水平线的夹角。
Trying on drilling with high water level and large elevation angle;
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