horizontal topic research 横向课题研究
The instability of the horizontal hole in unconsolidated sand reservoir is the main topic which must be considered during the horizontal well drilling operation.
在疏松砂岩油藏中钻水平井首先要解决的是井眼失稳问题。
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This topic is to design a special double-sided horizontal boring lathe.
本课题设计一台双面卧式专用镗床。
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模块上移
模块下移
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