置换的

Thirty patients who were planned to undergo mitral valve replacement were enrolled in this study.

目的探讨二尖瓣置换术术后早期芬太尼经静脉患者自控镇痛的有效性和安全性。

We chose 15 cases of valvular heart disease mitral stenosis with pulmonary hypertension undergoing mitral valvular replacement.

选择15例风心病合并肺动脉高压行择期瓣膜置换术的患者，在体外循环前、后吸入40 ppm nO气体。

Two (8%) patients ultimately required mitral valve replacement for recurrent mitral insufficiency.

最初手术的10例患者与后15例患者比较，后者耗时明显缩短：总手术室停留时间分别为318.5分钟和275.1分钟；夹闭时间，97.6对81.1分钟；后瓣切除或修补26.2对15.6分钟；瓣膜成形术，31.9对24.8分钟；住院天数分别为4.2和1.67天。5例患者术后出现房颤，2例患者（占8%）因最终出现二尖瓣功能不全而进行了瓣膜置换术。

OBJECTIVE: To explore clinical perioperative complications of TKR in the patients over 70 years old.

目的：70岁以上患者膝关节表面置换围手术期的常见并发症特点分析。

In chapter 2, we study sorting permutations by 2, 4-reversals.

第二章研究2，4-逆序变换的置换排序问题。

In this thesis, we mainly study sorting permutations by 2, 4-reversals.

本文主要研究2，4-逆序变换的置换排序问题。

Boolean permutations are in very important applications in cryptosystem s.

布尔置换在密码体制中有着非常重要的应用。

Methods According to theamount of ventricular haematocele and its configuration, shape, symptom and the primary affection,clearing the hemorrhage by liquefied drainage centesis at diacele, with the assistant of liquefieddrainage.centesis at lateral ventricle and balancing between cerebrospinal fluid and physiological saline.

依据脑室内积血的量及其形态、形状、病情、原发病，应用第三脑室穿刺液化引流术和／或辅以侧脑室液化引流术、脑脊液／生理盐水差额置换术，清除出血，抢救患者生命，改善预后。

Combined CABG and valve replacement surgery is feasible and effective,shortterm effect of satisfaction with the surgery.

同期实施冠状动脉旁路手术和心脏瓣膜置换手术是可行有效的，手术近期效果令人满意。

TMS100 SERIES Flowmeter for small flows of gases and liquids with AISI 316 measuring tube and magnetic of reading transmission; accuracy 5 % of F.S.; max.

开关式输出通常用于报警关闭功能，根据它们的工作需要，用法兰或螺纹连接安装在浮球和置换器上。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。