置换

During development of the somatic macronucleus, Oxytricha trifallax destroys 95% of its germ line, severely fragmenting its chromosomes, and then unscrambles hundreds of thousands of remaining fragments by permutation or inversion.

在发展体macronucleus ， oxytricha trifallax摧毁了95 ％，其胚芽线，严厉过于分散，其染色体，然后unscrambles数以十万计的其余片段的置换或倒置。

Programme of major component repair or replacement during the project life.

在项目生命期内，主要部件修复或置换的计划

Cortical bone atrophy of proximal femur secondary to stress shielding is one of the major complications in long term result of total hip arthroplasty.

由于假体的应力遮挡作用所引起的股骨上段骨吸收是影响人工髋关节置换远期疗效的主要并发症之一。

Artificial joint replacement basically meets the physical requirements of joint function, maintains majority of normal range of motion, and restores majority of joint function. Moreover, the prosthesis source is abundant with no rejection.

人工关节置换可以基本符合运动损伤后关节功能恢复的生理要求，保持原关节的大部分活动度，恢复后大部分功能良好，而且假体来源不受限，无排斥反应。

Detail analyses and algorithms are presented for the design and realization of the optical localizing system, including the techniques of speckle classification, speckle-center explorer, speckle marcher, speckle recognizer and infrared filter, etc.

论文详细给出了置换手术导航中光学定位系统设计和实现过程中的关键步骤和算法，包括红外光斑的聚类、光斑识别、光斑实时跟踪方法以及红外滤波片的选择。

BACKGROUND: Osteoblasts derived from bone marrow stromal stem cells are the main force of the cells in bone marrow cavity. In the artificial joint replacement cases, their life situation is closely related to conductive pressure of prosthesis.

背景：骨髓基质干细胞来源的成骨细胞是骨髓腔内主要的受力细胞，在人工关节置换病例中，其生命活动状况与假体传导压力有密切关系。

Luo Jie is good at transposition, creating misunderstandings between the materialness of non-material and the non-materialness of material.

罗杰运用置换手法，让非物质的物质性与物质的非物质性之间产生歧义。

According to Floquet theory and transition curves of Mathieu equation, two different modified strained parameter methods are compared on precision of periodic solutions.

中文摘要：为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

Virtual memory page replacement is an important part of virtual memory management.

页面置换算法是操作系统中虚拟存储管理的一个重要部分。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。