查询词典 protraction

And then the effects of culture with different hormone combination on the buds' protraction and the young plant rooting were investigated.

结果表明，茎段为诱导不定芽的最佳外植体，6-BA是影响不定芽产生的最主要因素。

Based on the analysis of distortion and protraction of warp and form of shedding , the problem that dobby can not fully develop its capacity is located.

通过对开口时经纱变形伸长特性和开口形式的分析，指出了多臂机不能充分发挥效能的问题所在，并给出了解决办法。

The functions of protraction of its spatial complicated figures and the calligraphy of Chinese characters were realized.

通过多种运动插补方法实现输出末端的预定轨迹，通过类对象间关系分析得到基于PC的运动控制体系软件层次结构。

The essential characteristics of transnational ethnic groups in China are of their importance, internationalization, complexity and protraction,it directly affect relation among our country and neighboring countries,and the stability of our country's border.

由于跨界民族使我国的民族问题具有国际性，它直接影响我国与周边国家的关系，影响我国边疆的稳定。

Objective To observe and evaluate the profile changes after maxillary protraction treatment for Class Ⅲ malocclusion.

目的 观察与评价上颌前方牵引矫治器矫治骨性Ⅲ类错后软组织侧貌的变化。

Compared with traditional protraction, the teachingmode of the plane composition by CAI can focus the emphases on the training of thinking and sculpture, which is the tenet of this course.

利用计算机辅助平面构成的教学方法与传统的手工绘制相比，能有效地把学习的重点放在思维训练与造型训练上，而这正是构成课程的宗旨所在。

In this thesis the author select four angles as follows: the relationship between true and false, the relationship between emotion and scenery, the relationship between figure and ground, and the relationship between rapidness and protraction.

本文试从诗歌中"情"与"景"的衬托方式、"情"与"景"的主次关系以及"景物"描写中的几个问题来具体分析"晴"与"景"的不同组合方式对诗歌情感抒发和意境传达会形成哪些不同的艺术效果。

The maxillary protraction with orthopedic force is often used to treat those with the primary deformity of maxilla underdevelopment.

其中，以上颌骨发育不足为主要畸形表现的患者，临床常采用矫形力牵引上颌骨向前进行矫治。

The college instructors' professionalization and specialization are basically aimed at improving the effect of political and ideological education and characterized by stability and protraction.

高校辅导员的职业化、专业对口化的基本内涵可理解为：以提高辅导员思想政治教育的成效为目标，以教育的专业性、科学性为基本要求，以角色的稳定性和长期性为基本特征，使辅导员作为教师队伍的组成部分，逐步走向专门职业和特定专业的发展趋向和过程。

Methods: On the basis of the 3-D finite element model constructed in Experiment four, to simulate the boundary conditions of craniofacial complex protraction with MSC.

在实验四建立的有限元模型基础上，利用MSC。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐