subdrainage 中文意思是什麼
subdrainage
解釋
暗溝排水-
Pvc subdrainage is one kind of advanced drainage techniques developed in recent years in the world. it will have a promising future of wide application
塑料暗管是一種新型的排水材料，具有很好的排水效果，應用前景廣闊。 -
The pavement subdrainage system removes excessive subsurface water to the edge of highway in time, so it can improve pavement performance and extend service life. asphalt treated permeable base ( atpb ) material has been widely used due to its high drainability and construction convenience
如果在路面內部設置排水系統，將路面結構中的內部滯水及時排除到路面和路基結構外，可以改善路面的使用性能，提高其使用壽命。 -
Based on this, the upper controlling index of soil water content is 80. 4 % and the days of waterlogged and salinization tolerance is 3. 2 days. the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient, it can analogy the changes of soil water content and salinization which are changed with times and depth
論文在忽略水平方向水力梯度影響的假定下建立了排水條件下麥田水鹽運移模型，模擬土壤水鹽含量隨時間、空間的變化情況。經與實測資料對比發現，計算值與實測值較為接近，故該模型及參數的確定是合理的，可用於預測麥田水鹽的動態變化。
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