必要的例句大全

In order to raise utilization ratio of container bale capacity and load weight, it is necessary to study how to loading goods.

为了提高铁路集装箱装箱利用率，有必要对铁路货物装箱方案的制定方法进行研究。

Check friction plate and straight pin for signs of damage and replace if necessary.

检查摩擦片和直销有无损坏的迹象，如有必要，应进行更换。

Reciprocity is also necessary. If you are invited by the Chinese to many feasts, you might as well give a return banquet to them.

礼尚往来也是必要的，多次受到中国人宴请，你不妨也回请一次。

The metallogenic material was from deep alkalic basaltic magma, and the pulsatory invasion was the necessary metallogenic condition of the ore deposit.

成矿物质源于碱性玄武岩浆，基性次火山岩浆多次脉动式入侵是矿床形成的必要条件。

At28-You don't need to tell her a story to take her to bed.

在她28岁的时候，连故事都没必要讲就可以带她上床。

So the construction of the concrete cable bent tower becomes one of the key technologies in the construction of long-span bridges. It is necessary to study the construction technology of concrete cable bent tower s.

因此，索塔施工成为大跨度桥梁施工的关键技术之一，有必要对混凝土索塔施工技术进行研究。

The study on the technology and kinetics of chlorination of benzyl chloride is rather essential to the design of reactive distillation column in that the new technology about combination of reaction and distillation is used in the production of benzal chloride.

因为拟采用新型反应精馏耦合技术进行苄叉二氯的生产，研究氯化苄氯化工艺和动力学对于反应精馏塔的设计很有必要。

Beginning in1991, my colleagues and I had the privilege of working with structural biologists and medicinal chemists to test small chemicals that might intercalate into the catalytic site of the HIV protease, an enzyme essential for the production of infectious progeny virus.

从1991年开始，我的同事和我有幸与结构生物学家和医学化学家合作，对有可能阻隔艾滋病毒蛋白酶的触媒点的微型化学药物进行测试，这种蛋白酶是繁殖传染性病毒的必要酵素。

However, there are a lot of factors that affect the cutting quality ( the rate of broken biennial root) of cutter.

而影响切割器切割质量（破头率）的因素较多，因此，有必要对甘蔗切割器影响切割质量的各因素进行优化研究，提高其切割质量。

In the traditional idea political education, the teacher and the students are inequality under the philosophic base of subject and object in binary fission, and the inculcation model without necessary conversation results in the bad education.

传统的思想政治教育，主客体二分的哲学基础使教育者和受教育者处于不平等地位，灌输模式因缺乏必要的对话与沟通使教育效果低下。

No tape was found in your tape drive. Please insert a blank tape ( and close your tape drive door if necessary).

在磁带驱动器中没有找到磁带。请插入空白磁带（如有必要，关闭磁带驱动器门）。

This paper analyzes the domestic and international research of presplit blasting Air-deck Charge technology, and put forward the necessity and urgency of using this technology in the highway construction which through the mountains.

论文分析了国内外预裂爆破空气间隔装药技术的研究现状，并提出了在山区公路修建中使用该技术的必要性和迫切性。

There is still some hope that the economic blockade will work and make military intervention unnecessary.

仍有希望经济封锁将会起作用，也将会使军事干预不必要。

Twenty minutes after a single bolus dose, it may be unnecessary to antagonize the block when the train-of-four has returned to normal and fade is not present to a tetanic stimulus.

单次用药20分钟后，当四个成串刺激恢复正常和强直刺激消退后，没有必要再进行拮抗。

For a linear bounded operator in finite dimensional Hilbert space, we first introduce the definition of exactly positive and give a sufficient and necessary condition by the way of space decomposition of the operator;

对有限维Hilbert空间的线性算子，引入了恰好正的概念，并利用算子的空间分解，得到了其存在惟一正逼近的充分必要条件；

Theorem 1 and are equivalent infinitesimals if and only if. Theorem 2 The product of a bounded function and an infinitesimal is an infinitesimal.

定理1与是等阶无穷小的充分必要条件为。

For ensuring the mining production to be economical, continuous and in a state of equilibrium, one of the necessary steps to be taken is to account, determine, and balance the workable ore reserves.

各级矿量的计算与确定以及其间的平衡是保证矿山经济合理地持续、均衡生产的必要条件之一。

Through the comprehensive technical level analysis of China plate rolling, pipe making and pipe processing, it points out the possibility and necessity of establishment of ERW casing production line in China.

通过对我国近年来卷板轧制、管材制造及管加工等技术水平综合分析，认为，在我国建造ERW石油套管生产线是必要的、可行的。

The free trade area would be a threatening alternative to the non-Apec nations – the European Union, India and Brazil – that are refusing to make the concessions necessary to close the round.

自由贸易区这一替代方案，可能对非APEC成员国（欧盟、印度和巴西）构成威胁&这些国家目前拒绝作出必要的让步，以完成多哈回合谈判。

The vehicles navigation localization belongs to a kind of dynamic system, bringing out with series of data along time passage, therefore, seeking one method to improve processing result to the matched data dynamic error, heighten matching quality has the necessity very much.

车辆导航定位属于一种动态系统，随时间的推移产生时间序列数据，因此，寻求一种能够对匹配数据动态误差具有较好处理效果、能够提高匹配质量的方法是很有必要的。