How to improve cement slurry displacement efficiency and cementing quality are cementing successful key of the well.

如何提高水泥浆顶替效率及固井质量是该井固井成功的关健。

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The displacement efficiency was raised through optimizing slurry system, selecting suitable cement additives and adjusting reasonably slurry rheological property.

同时优选水泥浆体系，选择合适的水泥外加剂，合理调整水泥浆流变性，提高了顶替效率。

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Objective:To summarize and evaluate the efficiency of treatment of giant cell tumor of bone with hyperthermia inactivation and packing with osseous granula and cement.

目的：总结和评价高温灭活、骨粒骨水泥填充骨缺损治疗骨巨细胞瘤的疗效。

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Red tape from municipal and provincial governments gums up foreign investment, and the reduction in loans to cement and steel companies cuts all investment--including money for efficiency projects--to those industries.

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