youtian 中文意思是什麼
youtian
解釋
油田-
Li youtian, one of 10 outstanding scientific workers of agricultural machinery in shanxi province
先進農機科技工作者李有田 -
On based of original drainage substructure brought forward by zhang youtian. the author has solved its shortage by adopting the technique of improved drainage substructure which is very rigorous in theory putted forward by zhu yueming. simulating actual whole 3 - d seepage action and effect of seepage control have come true
本文在張有天等人所提出的初步排水子結構的基礎上，采納他人提出的理論上嚴密的改進排水子結構技術，很好地解決了以上不足，使得整體三維模擬排水孔（幕）的實際滲流行為和滲控效果成為現實。
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