置换

According to analysis the gas content of process system entering or coming out of compressor is confirmed to accord with design requirement or purged to be qualified with nitrogen.

根据分析确认压缩机出入阀门前后的工艺系统内的气体成分已符合设计要求或用氮气置换合格。

Methods To grade for 49 cases of patients with SAH ,in which Nimodipine or Papaverine continuously was applied to pump for 19 cases, permutating cerebrospinal fluid accompanied with the aboved treatment for 30 cases.

方法以HUNT-HESS分级系统对SAH分级，单用尼莫地平持续泵入或罂粟碱静脉输注治疗19例，在上述治疗的基础上同时脑脊液置换治疗30例，观察指标为临床表现及影像学所见，如DSA、CT及脑电图。

Results The fractures affected the paretic side in the 23 cases,the 24 cases were treated with hemiarthroplasty including bipolar arthroplasty in 10 cases,the 23 cases were followed up for 4 weeks to 1 years,the Harris scores were beyond 80 points in all cases.

结果 2 3例股骨颈骨折发生在偏瘫同侧，2 4例接受人工股骨头置换手术，10例双动股骨头，其余患者为单极股骨头；2 3例接受随访，时间为 4周至 1年，Harris评分均在 80分以上。

Spiral nail was used to fixed fracture of neck of femur in 35 patients,multi screw posts were used in 20 patients,pressor slideng goose neck nails were used in 5 patine...

结果 经过平均 2 3个月的随访，优良率：粗隆间骨折 63 。3 %；股骨颈骨折内固定组 5 3 。9%，假体置换组 85 。7%。

［Objective］ To discuss the therapeutic effect of plasma exchange in pemphigus.

［目的］探讨血浆置换疗法治疗天疱疮的疗效。

Methods］ Analysis the therapeutic effect of plasma exchange in pemphigus by restrospective analytic method.

方法］回顾性分析曾接受血浆置换疗法的8例天疱疮患者的临床资料。

Conclusion］ Better effect of plasma exchange in pemphigus can be achieved as a kind of adjunctive therapy.

结论］血浆置换疗法辅助治疗天疱疮可取得较好的疗效。

The determination of the suborbits of a permutation group is one of the basic problems in the permutation group theory.

一个有限传递置换群的点稳定子群的轨道称为该群的次轨道。

The symmetry group is the permutation group acting to exchange particles of the same type.

对称组是置换群代理交换颗粒同一类型。

This paper studies knots from a group theory point of view. A new method has been constructed that transforms a knot group to a permutation group, so as to better understand the nature of knots.

本文是从群的角度对纽结进行研究，构造出了一种从纽结群到置换群的表示，可以更好的反映纽结的性质。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。