Further, the paper discussed the necessity of using full concrete lining for the Xiaowan plunge pool and made new proposals for its bottom elevation, length and shape.

文中还讨论了小湾水垫塘采用全面混凝土衬砌的必要性，并对水垫塘底板高程、长度及体型提出了新建议。

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Ultra excavation: cable trench excavation shall not exceed the bottom elevation. If ultra-dig in some places, obtain the consent of design units.

沟底超挖：开挖矿用电缆沟不得超过沟底标高，如个别地方超挖时，其处理方法应取得设计单位的同意。

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In the paper, the optimum holing form and principle are put forward for the horizontal anti-seepage curtain and it is obtained that the structure with rolling bottom elevation is the optimum one.

提出了水平防渗帷幕最佳布孔连接形式和布孔原则，得出了底部高程起伏的结构形式为最佳结构形式。

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Also, the pressure at the bottom will be lower than the pressure at the top as pressure decreases with increasing elevation.

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Even so Stevenage knew a second goal was vital to erase any lingering doubts about their elevation to League Two and it finally arrived when Byrom surged forward and unleashed a low drive into the bottom right-hand corner.

BBC: Charlie Griffin