必不可少

The skin is an essential part of your body and its largest organ.

皮肤是身体必不可少的部分，也是身体的最大器官。

Music is that the mankind are the most ancient old, most have widespreadly with one of the art forms of atmosphere; Are the important form that the mankind pass particular realization of the stereo set structure and essential to have of feelings performance and exchanges; Is that what mankind live is organic to constitute part, it also that time art, sense of hearing art, the comprehensive performance of orotund art.

音乐是人类最古老，最具普遍和感染力的艺术形式之一；是人类通过特定的音响结构实现和感情表现与交流的必不可少的重要形式；是人类生活的有机组成部分，它也是时间艺术，听觉艺术，声音艺术的综合表现。

In this paper,we have described a new method for camera calibration based on space orthogonal plane.

引言 在计算机视觉中，从图象获取三维信息，摄像机标定是必不可少的重要步骤。

This is because the oscillating many essential tasks.

这是因为串墨实施很多必不可少的任务。

Thirdly, to add enchantment to convenience, an over-all city planning is indispensable.

还有， 工作的实施，高瞻远瞩的整体城市规划必不可少。

In thermal power plants, the steam overheat temperature is an important parameter for the safe running of the turbine.

在锅炉汽轮机组的运行中，水蒸气过热度的监测是一项必不可少的工作，它对保证机组的安全运行有着重要的意义。

The articles for daily use that abroad imports called exotic in the past, the carry that use a boat comes, industry produces indispensable hydrochloric acid, oxyhydrogen to change sodium, the magnesium that manufacturing plane, car uses is waited a moment, it is the product of the rework of marine product or marine product, this kind of breed gets too numerous to mention one by one more, concern with everybody close.

国外进口的生活用品过去就叫舶来品，是用船运来的，工业生产必不可少的盐酸、氢氧化钠，生产飞机、汽车用的镁等等，都是海洋产品或海洋产品的再加工的产品，这类品种多得不胜枚举，和每个人都关系密切。

In this strategy SHIELDS are vital due to the usage of PAC's and Devastators

在这个战略中，由于行星突击母舰和毁灭战舰的使用，护盾是必不可少的。

This is a vital and very important thing that we do in the Western Pacific.

这是我们在西太平洋做的必不可少、极其重要的事情。

Pantothenic acid(vitamin B5) The precursor of coenzyme A,pantothenic acid is essential for several fundamental reactions in metabolism.

泛酸在新陈代谢的一些基本反应中是必不可少的，它是水溶性的维生素B族的成员之一，由植物和细菌合成，而脊椎动物不能合成泛酸。

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。