查询词典 precondition

And the precondition is to know about the psychological status of examinee using doping.

而开展反兴奋剂教育的基本前提就是要对体育高考生使用兴奋剂的心理现状有一个基本的把握。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

Therefore, peeling off extensity from regional ity has become the precondition of abstracting theoretical model of regional spatial structure.

因此 ，从区域性中剥离出空间性，就成为区域空间结构理论模型提炼的前提。

Know to all, The refract wave exist an precondition, that is the bottom medium velocity is bigger than upper, then medium interface produce the refractive wave, if the medium exist the speed turn in reverse, and low speed in false bottom, the medium interface can not calculate.

众所周知，折射波存在的前提是下层介质的速度一定要大于上层介质的速度，这样才能在界面形成折射波，如果存在低速夹层和速度倒转，则利用折射波来求取表层结构难以进行。

It is the precondition to investagate whether the water conservancy engineering is feasible and evaluate it on point view of economy. The course can provide scientific basis for decision-making, engineering constructing and project selecting.

它是研究水利建设项目是否可行的前提，从经济上对建设项目进行评价，工程方案进行选优，为方案决策和项目建设提供科学的依据。

The paper"s conclusion is that the need and recognition of agriculture from a new socialism country are precondition of the appearance of the sculptures; the State"s attitude of how to increase the agriculture yield greatly affects the proposition of the sculptures; while the same international circumstance and political background unified the problem of nationalization of sculpture and the emphasize of agriculture foison from the state, they all having a great deal to do with the nice hope of the new state that it yearned for becoming more mightier and more independent.

通过考察，本文的结论是，一个社会主义新国家对农业的需求与重视是农展馆雕塑出现与产生的前提，国家对于提高农业产量方法与途径的认识直接关系到国家对农展馆雕塑的命题，而相同的国际环境和政治背景则使雕塑的"民族化"问题与国家对农业丰收的强调统一起来，它们都与一个新国家渴望迅速走向独立、富强的美好愿望有着密切联系。

Based on the current signal from the proceeding stage, the first orderΣ-Δmodulator designed could be simplified in the precondition of performance satisfaction, and it is good in accomplishing signal conversion and could be incorporated with the forestage bandgap circuit.

选择折线插值法进行非线性校正，通过硬件描述语言Verilog对体温计的占空比检测电路进行了设计，采用Matlab软件进行拟合仿真，获得了分段线性化输出方程，最后将信号转换为BCD码，在七段数码显示屏上输出。

The self-organization evolving mechanism of cluster sustainable growth are analysed and discussed , and the article think that the opening and unbalance is the precondition , fluctuating is the inducement , furcation and environment selection is the path , competition and cooperation is the power about cluster sustainable growth.

探讨了产业集群持续成长的自组织演化机理，并认为集群的开放性与非平衡是集群持续成长的前提；涨落是集群持续成长的诱因；分叉与环境选择是集群持续成长的路径；竞争与协同是集群持续成长的动力。

The existence of global solutions of equations is the precondition to consider the asymptotic properties.

方程的整体解的存在性是考虑方程解的渐近性质的前提条件，线性增长条件是保证方程的整体解存在的最简单条件。

Being as the foundation and precondition, the legislative intent of anti-trust legislation hold the nature of prerequisite and halfheartedly.

作为基础和前提，立法目的在反垄断法中具有先决性和统摄性。

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。