查询词典 absolutely necessary

As with any ethylene oxide treatment, humidification is necessary.

在使用环氧乙烷灭菌时需要控制湿度。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

Implements the required safety functions necessary to achieve or maintain a safe state for the EUC; and

必需要能实现要求的安全功能以达到或保持EUC的安全状态；并且

The necessary development of completely different single-byte encodings for non-Latin alphabets, such as EUC which is used for Japanese and Korean created more confusion, while other operating systems still used different character sets for the same languages, for example, Shift-JIS and ISO-2022-JP.

在其他操作系统仍然为同一个语言使用不同字符集的时候，如 Shift-JIS 和 ISO-2022-JP，开发完全不同的单字节编码，如为非拉丁字母日文韩文（以及在一定程度上的中文）开发的EUC编码，会增加更多的混乱。

Science should always try to use Euclidean geometry and vary the laws of physics where necessary.

科学应该永远试用Euclid几何，并在必要处改变物理定律。

The results indicated that when eugenol was used for Channel Catfish in the process of artificial breeding,it\'s necessary to control the dose and anaesthetic time of eugenol to reduce damnify.

以上结果表明，丁香酚用于斑点叉尾鮰的人工养殖操作时，应准确掌握好麻醉剂量和麻醉时间，避免麻醉过度造成损失。

Sometimes it is necessary to use a euphemism .

有时候使用委婉语是很必要的。

Sometimes it is necessary to use a euphemism euphemism.

有时候使用委婉语是很必要的。

But to guarantee this character it was necessary that a book should be known as composed by the official witnesses and organs of the Evangel; hence the need to certify the Apostolic authorship, or at least sanction, of a work purporting to contain the Gospel of Christ.

但是，以保证此特性，有必要一本书，将被称为组成，由官方证人和机关的播道；因此，有必要证明使徒作者身份，或至少制裁，一项工作，本意是遏制福音的基督。

This is a two-edged weapon , of course . It is necessary to warn as well as evangelize .

当然， 这是一件双刃武器，不仅要宣讲福音，还要发出警告。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。