under-surface filling

With the improvement of voltage grade, the carrying capacity of iron tower foundation becomes largen, the ordinary foundation is difficult to meet the demand of the foundation carrying capacity under special geological condition, it increases every year of the construction capacity of filling pile foundation.

送电行业随着电压等级的提高，铁塔基础承载力趋大，在特殊地质条件下普通基础难以满足基础承载力要求，灌注桩基础的施工量也在逐年增加。

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The fifth was filling water with drip irrigation under plastic film on the crucial period in the bearing time of cotton.

在棉花生育关键时期采用膜下滴灌方式补水。

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The Door Test Study on Lock Filling and Emptying under the Tainter Gate

船闸弧形门门下输水试验研究

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The sedimentation experiment with high-density tailings-sand filling material pulp, slump test and trial methods are introduced, the analysis and discussion for the result conducted. It is of significant importance to tailings-sand's transportation under high density.

文章详细介绍了高浓度尾砂充填料浆沉降试验、坍落度试验和输送试验的方法，并对试验结果进行了分析讨论，这对实现尾砂的高浓度输送具有重要意义。

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Fifteen hybrid mid-season rice combinations were used to study the relationship between sink-source characteristics and grain yield at the seed-filling stage of the plants under high-yielding cultivation conditions.

以15个杂交中稻品种为材料，在高产栽培条件下，研究了灌浆期的库源特征与产量的关系。

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