不可缺少

These results indicated that TopoⅡ played an important role in chromosome organization.

从而证明TopoⅡ是一种染色体集缩过程不可缺少的活性蛋白。

I now have 100% fate in the inner ligaments in my knee again, said Torsten Frings at the end of a game that saw the midfielder return and quickly slot back into the team of which he is such a vital element.

我100%的相信我膝盖的内侧韧带。Torsten Frings表示。他在比赛结束后回到了中场并迅速的融入到了队伍中，他就是这样一个不可缺少的关键人物。

Cooling fans are the indispensable parts for ensuring the tranquilization and standing working of electrical motor.

电机的冷却风扇是保证电机稳定、持续工作而不可缺少的部件。

Along with the rapid development of modern society, sports has become an unalienable part of people's daily life. Athletics sports have got more and more attention.

随着现代社会的快速发展，体育已成为人们日常生活不可缺少的一部分，竞技体育也受到人们越来越多的关注。

And advertisement is one of the most important ways for people to promote their products. Advertisements have been an unalienable part of people's daily life.

而广告就是人们用来推销自己产品的一种重要途径，而且广告已经成为人们日常生活中不可缺少的一部分。

Out of class sports is a unlost part of school life.

课外活动是学校生活不可缺少的一环。

In the enrolling days, some of the predecessors exhorted to us that three things were a must, i.e. exam failure, girlfriend and at least a specialty such as playing the violon.

在上学的日子里，一些前辈曾告诫我们，有三样东西是不可缺少的，即考试不及格，女朋友和至少一门特长，比如拉小提琴。

Waer resources are the natural resources and environment resources essential to the existence of living things.

水资源是生物生存不可缺少的自然资源和环境资源。

In order to make the sense of self-efficiency widespreadly applied to math study, we expect, from the angle of psychology of mathematic education, to study the effects of the sense of self-efficacy in students math study and then formulate certain teaching concepts and principles, so as to guide the practical teaching of this subject as well as of others.

研究者认为，加强学生自我感觉意识是强化学生的反思意识不可缺少的一部分。在教学中，发现影响自我效能感形成和发展的主要因素，进而将提高数学学习的自我效能感深入到教学活动中去，是当今数学教学改革所面临的一个重要课题。

Thought education was an integral part of Sun Yat Sen's philosophical doctrines.

教育思想是孙中山思想体系中不可缺少的组成部分。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。