The technologies could ensure the well bottom pressure keeping balanced during waiting on cement and cementing safety.

该技术能保证固井候凝过程中井底压力平衡，施工安全。

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Modelling experiments indicate that the new concept is able to enhance the bottom pressure in hearth so as to make the longitudinal pressure distribution more uniform.

模拟实验表明：新方案可以提高炉膛下部的压力，使炉长方向压力分布趋于均匀。

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The deep gas wells of Qingshen gas field in Daqing are characterized by the great well depth, high bottom temperature, high bottom pressure and gas production with water.

大庆油田庆深气田的深层天然气井具有井深、井底温度高、井底压力大、气水同产等特点，前人的井底静压折算公式不能达到生产所需的精度。

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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, overseeding practices in the Southwest have changed dramatically in the last five to seven years, as the golf industry's overbuilding boom went bust and put pressure on bottom lines.

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In addition, declining selling prices combined with increasing investments in developing new technologies has put downward pressure on its bottom-line.

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