置换

The key of theme cast about for the more effective catalysts of metathesis reaction.

提高交互置换反应单程转化率的关键是寻找性能优良的催化剂。

An increase in cation exchange capacity of the tissue should be observed .

可以观察到植物组织中阳离子置换能力的提高。

The results showed that the technique was useful for the separation of simulated protein mixture and simple cellulase compound.

结果显示，置换层析技术对模拟混合蛋白和简单纤维素酶混合物具有很好的分离作用。

Objective To explore the curative effects of exchange of cerebrospinal fluid for the treatment of subarachnoid hemorrhage.

目的 探讨脑脊液置换术治疗蛛网膜下腔出血的临床效果。

The results of 11 total knee arthroplasties in 9 patients with a Charcot joint secondary to neurosyphilis were reviewed.

本研究回顾了11例全膝关节置换的病例，其中9例病人的Charcot关节继发神经梅毒。

Timothy J. Gardner, a cardiothoracic surgeon and medical director of the Christiana Care Health System in Newark, Delaware.

Gardner 表示，该夹合器的支持者声称"它的好处是安装以后并不影响将来的外科手术，但可能影响将来的修补"，这使得将来的干预只有应用效果较差的瓣膜置换。

In this paper, the separation of tin cladding from tinned copper wires and its recovery are investigated.

本文采用置换反应方法除去废铜线表面的锡镀层，对回收锡的工艺进行了探索。

In order to produce environment-friendly cement,cement clinker was partly replaced by limestone powder in laboratory.

为生产环境型水泥，用石灰石粉置换部分水泥熟料的方法进行了实验。

We performed a retrospective review of 25 patients who underwent arthroscopic debridement after primary TKA to treat the patellar clunk syndrome (15 knees) or patellofemoral synovial hyperplasia (10 knees).

我们开展了一项回顾性研究，对象为25位在首次全膝置换术后接受过关节镜清理术的病人。其中15例是因为髌骨撞击综合征，另外10例是因为髌骨关节滑膜增生。

With the increase of temperature, cobalt removal can be improved considerably.

研究结果表明，温度不同时，表面沉积物的结构也不同，表面沉积物的结构影响置换的速度。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。