不是必要的

And then the author explained that the worry was totally unnecessary by comparing the performance of vertical mill cement and ball mill cement produced by three foreign cement corporations and as well as the related concrete.

基于此，作者进行了国外三家水泥企业立磨水泥和球磨水泥的性能对比及其配置的混凝土性能对比，说明此种担忧是完全不必要的。

You are advice to quote your Reference and Batch numbers to your claim agent in order to avoid unnecessary delays and complications.

你是你的意见，参考和引用批次编号，以您的要求代理人，以避免不必要的延误和并发症。

The experimental results show that the introduction of similarity probabilities can improve speech recognition and it is unnecessary to design a codebook as large as 256 codewords.

实验结果表明相似概率的引入有利于进一步提高语音识别率，同时发现大小为256个码字的码本是不必要的。

But this need not—and in today's febrile environment must not—mean dumping existing dollar reserves. That would impose a far higher cost on everyone, including the dumpers.

但是这是没有必要的，现今的环境也不允许，这意味着抛售现有的美元储备将增加所有人包括抛售者本人远期的成本。

Next, as to whether to bring a gift, in most informal gatherings, it is not necessary.

第二，关于是否要带礼物的问题，在大多非正式的聚会中，礼物是不必要的。

The FA Cup Final might have been dull as an exhibition because Chelsea and Manchester United had two outstanding defences and two disciplined midfields and rarely gave away the ball unnecessarily.

足总杯决赛可能已经乏味的像一场展览会了，因为切尔西和曼联是两支杰出的防守球队，他们的中场井然有序，他们极少会出现不必要的传球失误。

By comparison and Fourier analysis of the waveshapes of the input current with different values of the inductor in the experiment, the valuable references are attained in the same type circuit design.

所以对电感值的计算就显得尤为必要。Boost型APFC电路中的升压电路部分不同于传统的Boost电路。传统Boost型电路的输入电压是直流电，在设计电感值时比较容易。

Never pressure your partner into unroping.

当然，如果两人之中有一个人感觉到不是很踏实，就应该绑起绳子，并且架设必要的固定点，尤其在两个人之间的攀登经验、能力有所差距的时候，更形重要！

Adi1988b. The goal of this card, baptized Supreme-FX is of course to reduce to the maximum unwanted noise by off-setting the audio circuit fromthe PCB of the motherboard.

此研究的目的卡受洗最高软体当然是为了最大限度地减少不必要的噪音减少对冲的音频电路，从电路板主机板。

With respect to the traditional face-to-face education, distance education has the following salient features: in the entire study period, quasi-permanent separation of teachers and students; educational institutions or organizations through the learning materials and support services both to students influence; use Contact teachers and students a variety of technical media and carry course content; to provide two-way communication; in the entire study period, the quasi-permanent and not a collective learning, students mainly as an individual in learning, social and teaching in order to carry out the necessary purpose of the meeting.

相对于传统的面授教育，远程教育有这样几个显著的特征：在整个学习期间，师生准永久性地分离；教育机构或组织通过学习材料和支持服务两方面对学生的学习施加影响；利用各种技术媒体联系师生并承载课程内容；提供双向通信交流；在整个学习期间，准永久性地不设学习集体，学生主要是作为个人在学习，为了社交和教学目的进行必要的会面。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。