不可缺少的

The gear discussed in this text is the horological gear. Gear is the indispensable component of the mechanical watches, whose performance determines the accuracy of the timing of the watches.

中文摘要本文所研究的是机械钟表中的齿轮，齿轮是机械钟表中不可缺少的重要组成部分，其性能直接决定了钟表计时的准确性。

In summary, Although in recent years combine development is swift and violent, But because our country vast in territory, The climate and the geography condition as well as the cultivated variety, the planter way have the big difference,Adds on the economical development not to be balanced, Some harvested the machinery jointly the performance and the part key technologies still is not mature,In next period of time, Thresher in our country's grain crops harvest work, Specially in the mountainous area, the knoll patch of land, the interplanting and the miscellaneous grains planted the area was still the essential work machines and tools.

综上所述，尽管近几年联合收割机的发展迅猛，但由于我国地域辽阔，气候和地理条件以及栽培品种、种植方式有较大的差异，加上经济发展不平衡，有些联合收获机械的性能和部分关键技术尚不成熟，在今后一段时间内，脱粒机在我国的粮食作物收获作业中，特别是在山区、丘陵小块地、间作套种和杂粮种植地区仍是不可缺少的作业机具。

The ideological and political education function of music education is the intersectant research of political education and music education, which under the guidance of Marxism theory. It is an indispensable component of ideological and political education discipline system.

中文摘要音乐教育的思想政治教育功能是在马克思主义理论指导下的思想政治教育和音乐教育的学科交叉研究，是思想政治教育学科体系不可缺少的组成部分。

Swr1400 Series is the kind of dye jigger with the biggest cloth roll and the widest cloth.It is self-designed and developed by our plant based on absorption of advanced technology of various dye jiggers from Japan,Denmark,italy,etc and in the light of specific conditions.It is the essential dyeing equipment in the dyeing and puinting trade.

SWR1400系列常温常压巨型卷染机是目前国内卷布直径和布幅最大的卷染机，本机在吸收了日本、丹麦及意大利等国各种卷染机的先进技术，并结合广大用户实际情况，由我厂自行设计开发的，是印染行业不可缺少的染色设备之一。

It carries out the finite element analysis of the main arm of excavator and actualizes jointless integration between modeling and FEA.

有限元分析是机械设计工程师不可缺少的主要工具，文中着重介绍Pro/Mechanica模块下的有限元分析，并以挖掘机动臂为典型进行了有限元分析的具体实践，实现了几何模型和有限元分析的无缝集成，分析结果为产品优化提供了依据。

Student Information Management System is an educational unit indispensable part of its contents for the policy mand school administrators, are of the utmost importance, so students information management system for the user should be able to provide adequate information and efficient means of inquiry .

学生信息管理系统是一个教育单位不可缺少的部分，它的内容对于学校的决策者和管理者来说都至关重要，所以学生信息管理系统应该能够为用户提供充足的信息和快捷的查询手段。

Polyurethane elastomer has good elasticity, wearable property, good oil resistance, the ozone(O_3) resistance, microtherm resistance, well viscidity, good mechanical property and electrical resistance and so on. So it has been widely applied in the every area of civil affairs.

聚氨酯弹性体具有许多优良特性，如高弹性，耐磨性，耐油性，耐臭氧性，耐低温性，高粘接性，有良好的机械强度以及好的电绝缘性等，因而被广泛应用于国民经济的各个领域，成为不可缺少的重要材料之一。

Based on this Newton proposed the inertia definition and the law of inertia, but the inertin definition both does not have the physics significance and is the inaccurate personating analogy, also has the contradiction with Newton's second law, also does not propose what is the indispensable physical factor to maintain object movement.

牛顿在此基础上提出了惯性定义及惯性定律，但惯性定义既没有物理意义又是不确切的拟人化类比，又与牛顿第二定律有矛盾，也没有提出什么是维持物体运动不可缺少的物理因素。伽利略的结论经牛顿的惯性理论取代后就在很大程度上偏离了物理范畴。

At the same time, it is necessary to revolute the content of government audit.

同时，审计内容的改革也是不可缺少的，作者结合十七大提出的改善社会保障的思想，在社会保障审计方面提出新鲜的理论和方法。

The same as Chinese porcelain or the integration of the Japanese people and their sado, whisky is the tradition of the Scots! Whisky has been known as the "Water of Life" in Scotland, for it has become an indispensable part in the people's lives.

如同中国瓷器的渊源，或是日本人与茶道的融合，和威士忌则是苏格兰人的传统，正因为如此，威士忌在苏格兰被称为「生命之水」，因为他已经成为人们生活中不可缺少的一部分。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。