查询词典 precondition

Contraposed the problems in homegrown supercharge waterflood pumps,raised the design philosophy of fluid drive superseding traditional mechanical crank gear and designed a new style of double cylinder single-action hydraulic waterflood pump system under the precondition of satisfing water-injection technology requirements.

石油工业的发展对注水泵提出了更高的要求：一方面泵的压力越来越高，功率越来越大，而制造和维护成本要低，体积和质量也不能过大；另外由于石油工程用注水泵的工作条件十分恶劣，如何提高注水泵易损件的工作寿命，更好的满足需要是设计的关键。

The writer considered that the absolute fixed had meaned each note of name of singing formed by absolute fixed pitch, and it was a precondition to study the fixed tonality; the comparative fixed meaned a kind of training method that only usage of singing way in fixed tune artificially, through the interval to organizing, and for this required the student with the base of tonic sol-fa conception.

内容提要：在视唱练耳教学中，"绝对固定"是指每个音的唱名都是由独立的绝对固定音高构建而成，它是学好固定调性的前提；"相对固定"则指学生在可能已经形成了首调观念的基础上，只是人为地采用固定调的"唱名方式"，通过"音程"来进行"构建"训练的一种形式。

Secondly the article reflects on the cognition springhead, on the reality basis and on the history origin of Ideological and Political Education costs to ascertain a gist of Ideological and Political Education costs. With the precondition of the gist, the article expands further to study the costs of Ideological and Political Education.

其次，通过对思想政治教育成本的认识根源反思、事实基础反思和历史渊源反思，确定思想政治教育成本的依据，作为思想政治教育成本研究深入展开的前提。

It is the main precondition. It is both sufficient and prerequisite condition.

这是一个重要的前提，也是充分必要条件。

The isolation of Sugarcane RNA was a precondition of Molecular biology research.

甘蔗种质RNA的提取是甘蔗分子生物学研究的前提。

Elective regulation is the precondition and foundation of the credit system, and is also the elementary character in the teaching supervisal of the credit system.

选课制是学分制的前提和基础，是学分制教学管理体系在运行中的最基本的特征。

Elective regulation is the precondition and foundation of the credit system.and is also the elementary character in the teaching supervisal of the credit system.

选课制是学分制的前提和基础，是学分制教学管理体制在运行中最基本的特证。

This symmetric relation, it form an equilibrium regulation structure, is the precondition that the government regulation can get their goal.

第二，市场结构由成本结构和需求结构共同决定，而成本结构和需求结构受外生因素影响发生的动态变化，推动着市场结构动态变化。

This is not a precondition, it's Syria's right, insisted Moallem.

这并不是一个先决条件，这是叙利亚的权利，坚持moallem 。

This is a logical precondition of studying his Taoist literary and artistic ideas .

这是我们研究其道教文艺思想的逻辑前提。

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。