置换

A renaming is a function mapping propositional variable to itself or its complement, a variable renaming is a permutation over the set of propositional variables of a formula, and a literal renaming is a combination of a renaming and a variable renaming.

许道云 ，董改芳，王健改名是一个将变元映射到变元本身或它的补的函数，变元改名是公式变元集合上的一个置换，文字改名是一个改名和一个变元改名的组合。

In the last decade, several evolutionary improvements have been made in the total hip replacement procedure and prosthesis.

在过去十年中，一些进化改进已在全髋关节置换术的程序和假肢。

To study the clinical results of the total hip replacement with different materials prosthesis.

研究不同材料假体对人工全髋关节置换近期临床效果的影响。

To select high-quality prosthesis, development and application of corresponding matching apparatus are important for total knee replacement.

选择高质量的假体、不断开发和推广使用其配套器械是全膝关节置换术普及和发展的关键。

Objective To investigate the treatment of joint injury in hand with prosthetic replacement.

目的 探讨人工关节置换术治疗手部关节损伤的方法及临床疗效。

But the applicability of these proteins to primary prosthetic replacement is also in the experimental phase.

但在初次人工关节置换手术中的作用还处于实验阶段。

Objective:To explore the cause and prophylaxis of infected custom-made prosthetic knee replacement.

目的：探讨特制全膝关节置换术后感染的原因及预防措施。

Methods Twenty five patients undergone replacement of femur head prothesis and total hip arthroplasty were included in this study.

目的：探讨人工髋关节置换手术后引起双下肢不等长的原因及相应的防治对策。

Objective To analyses the effect of CT for determining femoral prothesis rotational certification in total knee arthroplasty.

目的 探讨术前CT扫描对全膝关节置换中股骨假体旋转力线精确确定的作用。

Methods: There were 10 cases in our study, male 6 cases and female 4cases, average age 35 years old. AU the patients suffered from multiple chronic sinus in prothorax wail during die therapy of the thoracic and cardiovascular diseases, treated with single ro compound muscular flap wafting operation.

2003年9月～2005年9月采用单一或复合肌瓣移植治疗外科换药无法治愈的前胸壁多发性慢性窦道10例，发病原因均为DVR心瓣膜置换术、纵隔肿瘤切除术等心胸疾病外科治疗后。

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。