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Phosphoric acid is one of indispensable raw material in these industry.

所以磷酸净化一直是研究者关注的一个课题。

In this age of fitness, physical activity of daily life itself has become an indispensable part of.

摘 要：在这个全民健身的年代，体育锻炼本身也就成了人们日常生活中不可缺少的一部分。

Our country is ocean big country, also be piscatorial big country, aquatic product delicacy is sold carrying is a component with whole fishery indispensable production.

我国是海洋大国，也是渔业大国，水产品鲜销运输是整个渔业生产不可或缺的一个组成部分。

Control of the two main plantain diseases, yellow sigatoka and black sigatoka, is indispensable.

对两种主要病害黄香蕉叶斑和黑香蕉叶斑病进行控制是必不可少的。

For much of the world, the movement of plates like this is also an indispensable creative force.

对这个世界的大部分地区来说，板块的移动也是一种不可或缺的创新力量。

In Vision of Excess, Gorges Baitaille proclaims that production and conservation of goods are indispensable ways to maintain social order and thus designate the negative position of the pleasure principle.

在《过度》这一本书当中，巴塔耶认为生产和货物的堆积已成为维护社会次序不可或缺的手段，因此快乐原则成为负面的含义。

As the sophisticated theory coming and electronic technology developing, radar polarimetry has become a indispensable tool, and polarimetric radars have been applied in several fields such as military, remote sensing, agriculture, hydrology and monitor, and so on.

近年来随着理论的不断完善和电子技术的飞速发展，极化雷达发挥着不可替代的作用，在军事、遥感、农业、水利和监测等方面得到广泛的应用。

Investment, and the portfolio management theory fit to our stock market is the indispensable basic.

在探索中国的保险资金投资的道路上，我们应有这样的共识：他山之石，可以攻玉。

Power boiler air preheater hot spots detection system is a indispensable installation which are applied in power plant largely.

电站锅炉空气预热器是广泛应用于火力发电厂的不可缺少的设备，但是由于其自身的工作特性所决定，空气预热器比较容易起火。

Accordingly, information survey ought to be transfer of technology indispensable prelusive.

因此，信息调研应当是技术引进必不可少的前奏曲。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。