substitution operation

Method Make and design systemic rehabilitation plan for 90 cases of artificial hip joint substitution operation.

方法对90例人工髋关节置换术患者设计并实施了系统康复治疗计划.

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As an operation for trial, exploration and technology used by the ancients, with the principle of mystery and fantasticism, alchemy surprisingly at last became the substitution of deceiving.

它作为古人的一种试验、探索、技术操作，循着神秘而荒诞的思路，却成了行骗的代名词。

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The substitution of variable crown elevation tailrace tunnel for surge chamber not only can guarantee the safe operation of the powerplant and reduce the investment but also can avoid unfavorable influence of intensively distributed large span underground chambers on the stability of the surrounding rock mass.

用变顶高尾水洞取代调压室，既可保证电站的安全运行和减小工程投资，又避免了大跨度洞室群分布密集给围岩稳定带来的不利影响。

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