Well construction technology is the key issue of horizontal water well design and construction.
建造工艺是水平水井设计、施工的关键。
Conduction of horizontal subject Design Color;
主持横向课题《设计色彩》；
Final design to meet the requirements of a horizontal boring machine bed.
最后设计出了满足要求的卧式镗床床。
Final design to meet the requirements of a horizontal boring machine bed.
最后设计出了满足要求的卧式镗床床。
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