必不可少

He was, because of some atavistic spur or fillip in his own blood, most anxious to attain some sort of social position.

可是他血液里有祖上那股劲，急于想弄到一个什么社会地位。刺激销路必不可少的广告运动。

In the times that a network develops, roam, can current in bit sea the technical support that does not have block also is indispensable, from this for, the occurrence of this software, it is at least " avirulent and harmless ".

在一个网络发达的时代，能在比特海里遨游、通行无阻的技术支持也是必不可少的，从这一点来说，这个软件的出现，至少是&无毒无害&的。【以下内容为IT者网站提供英文翻译，未经授权请勿转载

I had to explain that the only way to get totally bulked up is to get the kind of high-tech machines they have at the gym, but Mom didn't want to hear it.

我不得不跟她解释，要是想要全面健身的话，一套健身房的高科技器械是必不可少的，不过老妈不吃这套。

While in the automatically controlled one-chip computer application system, work often by the time which are installed into time controller before, so calculagraph is one of the main part of the most automatic control instruments.

而在自动控制的单片机应用系统中，往往采用的是以时间为条件的时序控制，因此计时器构成了大多数自动控制系统中必不可少的组成部分。

As a testing and calibrating device, pressure calibrator is absolutely necessary in this process.

作为压力变送器及传感器的检测校验设备，压力校验仪是必不可少的。

Centuries ago, a moat or a castellated wall would have been de rigueur.

几个世纪以前，一条护城河或者一面城型围墙本应是必不可少的。

However, if we just stop at this step, it is not easy for us to solve the problem completely since language phenomenon is always in a state of casuality even though the phenomenon is quite regular, there must be a few exceptions.

古文字资料是先民给我们留下的一份极其宝贵的文化遗产，由于它具有时间早、年代确定、未经删改等显著的优点，因而成为追溯汉语源头所必不可少的素材。

It is very essential to have a causation concept for mankind when they self-executed the movable activities. Man can not deviate the basic principle from the causational rules when they studied any of the social phenomena.

因果观念是人类一切自觉活动必不可少的逻辑条件，人类在研究任何社会现象的普遍联系的过程中，都离不开以因果和因果关系作为基本原则的指导。

Mannose wire on the significance of modern nutrition is, as dietary fiber have been deemed no nutritional role of the waste, has been ignored until recent years a large number of clinical and epidemiological research on human dietary fiber found a very good balance of nutrition and regulating metabolism function, it is carbon water chemosynthetic of an important component of the human body is an essential nutrient.

甘露丝对现代营养学的意义在于，由于膳食纤维曾被当作没有任何营养作用的废物，一直不受重视，直到近年来大量的临床学和流行病学研究，发现膳食纤维对人体有很好的平衡营养和调节代谢的功能，它是碳水化合物的重要组成部分，是人体必不可少的营养素。

The colorimetric measuring principle of temperature is analyzed.

中高温的测量在钢铁制造、玻璃二次加工、热处理等领域是必不可少的，针对这些领域所面临的特殊环境，我们研制开发了基于热辐射原理的光纤亮度测温仪[1～ 2 ] 。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。