必不可少

It is that it is essential for the professional students of modern electromechanics to master the technological knowledge of modern numerical control.

掌握现代数控技术知识是现代机电类专业学生必不可少的。

Parents are really buying into the idea that electronic media is essential to their children's development.

" "父母都是真的购买到的思想，电子媒体是必不可少的，以子女的发展。

Use of electronic media is not necessarily required, technology is a tool to aid the delivery and provision of educational opportunities.

需要指出的是，电子媒体的应用并不是必不可少的，它只是帮助传送和提供教学机会的工具。

First for on-demand books quadrochromatic must be electronic files that desktop publishing system.

首先用于按需出书的原稿必须是电子文件，桌面出版系统必不可少。

Arterial embolectomy with Fogarty pipe is the only effective treatment for acute arterial embolism.

Fogarty导管取栓是治疗急性动脉栓塞唯一行之有效的方法，但要根据患者个体化因素，区别对待，药物治疗也是必不可少的一个重要环节。

Arterial embolectomy with Fogarty pipe is the only effective treatment for acute arterial embolism. But it must be made difference between treatmentaccoding to individualization. Drug treatment is indispensable component element.

Fogarty导管取栓是目治疗急性动脉栓塞唯行之有效的方法，但要根据患者体化因素，区别对待，药物治疗也是必不可少的一个重要环节。

Emollient creams and ointments are essential in the prevention and treatment of eczema.

润肤面霜和眼药膏是必不可少的，在预防和治疗湿疹。

Hutcheon's job is to look for evidence of the production of highly enriched uranium or plutonium , the essential components of nuclear weapons.

他的工作是找到生产高浓缩铀或钚的证据，这两种成分是核武器必不可少的。

So you need to contact the centre nearest you to find out the exact enrolment fee.

但是相关的管理费尤其是口试以及其他费用是必不可少的。

Plays a role in a wide range of enzyme systems and is essential for DNA metabolism and growth.

发挥了作用范围广泛的酶系统，是必不可少的DNA的代谢和生长。

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。