不可或缺

The regulation of DNA relaxation by Topo I is essential for DNA replication, transcription, and recombination events.

用来调节DNA 松懈的第一型DNA拓扑异构酶对於DNA的复制、转录和重组是不可或缺的一角。

Experience has its perfect work when the heart follows the trackway of the Almighty LORD.

这些经历是我们灵性成长不可或缺的过程。

He was affected by the former's transcendentalist theory and struck up a very intimate relationship with the latter, and all the three people had played an indispensable role in Hawthorne's literary career.

他是受前者的理论和沃尔登高奏非常亲密后者三、所有的人都起到了不可或缺的作用霍桑的文学生涯。

The company has been trading with the Canadian Pan-International Ltd, has become the exclusive authorized dealer, agent Products - Western Red Cedar / spruce pine fir / Tsuga - is a noble community, residential indispensable decorative natural wood preservative.

目前公司已与加拿大泛家贸易国际有限公司合作，成为了独家授权经销商，代理产品-西部红雪松（westernred cedar/云杉松木冷杉/铁杉-是高尚社区、住宅不可或缺的装饰用天然防腐木材。

Absolute tonal neutrality, outstanding dynamics and a so far unknown level of resolution are trademarks of our amplifiers, complemented by an explosively fast and uncoloured bass and high power triode performance.

绝对忠实的音乐还原，卓越的动力性能，久负盛名的高水准音场解像度，是我们不可或缺的元素，整机装备在极速反应、不添加任何色元素、功率储备充足的胆管上。

Not asking my love that how deep are you , I am criticized really not coming out , am known you already become my one kind of habit in living , indispensable habit only , every day, can not eat , not going to bed, I dislike that self so-called undividedness , the all the time all the time , our say to self , the shadow being unable to being looked for her really can but have no way not to miss you , true?

不要问我爱你有多深，我真的说不出来，只知道你已成为我生活中的一种习惯，不可或缺的习惯，每天每天，可以不吃饭、不睡觉，却无法不想你，真的，我讨厌自己所谓的专一，一直的一直，我对自己说，得不到真正的找寻她的影子可以吗？

From the B52, which dominates the layered-shooter category, to the Espresso Martini, which has become a major player in the contemporary-classic cocktail category, B OLS Coffee has become unmissable.

从B52开始，在分层子弹酒系列中占据了主导地位，至于意大利浓咖啡马提尼，在当代经典鸡尾酒系列里扮演了重要的角色，波士咖啡利口已经不可或缺。

Unraveling it won't be easy. But it is essential.

但是它又是不可或缺的。

The mobile phone has already incorporated our life as the intellectual portable terminal, become our indispensable important tool, the mobile phone game is paid attention to by more and more cellphone subscribers too, but because market unstandard, restriction of platform,etc. a great deal of factor, a lot of mobile phone lifespan of game extremely short, its main reason is sports and challenge of game are insufficient.

手机作为智能移动终端早已经融入了我们的生活，并成为我们不可或缺的重要工具，手机游戏也被越来越多的手机用户重视，但由于市场不规范、平台的限制等诸多因素，许多手机游戏的生命周期极短，其主要原因是游戏本身的竞技性和挑战性不足。

The virial coefficients are basic thermophysical properties that can be used to define a wide range of thermodynamic properties and are important in molecular theory.

维里系数是流体最基本和最重要的热力学参数之一，与人类的日常生活和生产实践密切相关，也是发展分子热力学理论不可或缺的重要手段。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。