Through market researching the existed reactive power compensations have a defect that they are too expensive their accuracy can not meet the requirements and their useful time is short what greatly affecting their universal use .

通过市场调研，发现现有无功补偿控制器存在价格过高、精度不高、 使用 寿命短的现象，大大影响其普及使用。

A Useful Time Device for Delay Detonator

一种 实用的延期雷管测 时仪

The useful speech time frequency components can be picked up successfully by the proposed algorithm and they are used to reconstruct the enhanced outputs .

新算法通过提取混合语音输入中的 有效语音 时频成分并利用人耳的听觉掩蔽效应重构合成增强语音输出信号。

The effects of the useful time and the distance between the light source and detected site on the results of measurement were discussed in detail .

同时也较为详细地讨论了 有效 时间的选择和光源与探测点间的距离对测量结果的影响。

The Chart control is primarily useful any time you need to chart live data or monitor a specific metric critical to your business .

当需要用图表来表示动态的数据或监视对你的业务而言非常重要的元素 时。图表控件会相当的 有用。

This paper discusses in detail the evolution of obtaining prescription system drawing on the relevant legislation in other countries targeted on how to design our system to obtain some useful time to explore .

本文通过详细论述取得时效制度的发展演变，借鉴其他国家的有关立法，有针对性的就如何设计我国的取得 时效制度进行了 相关探索。

A useful saving of time and money

在 时间和金钱方面 有 价值的节省

What country is useful at meal time ?

什么国家在吃饭的 时候最 有用？

Because of the second law of thermodynamics both energy and matter in the Universe are becoming less useful as time goes on .

根据热力学第二定律，宇宙里的能量和物质随着 时间的推移而变得越来越 无用。

This thesis develops a kind of constant flow blanking plug with simple structure long useful time and low costs .

本文研制了一种结构简单、 使用 寿命长、成本低的油田恒流注水堵塞器。

Modeling of safety assessment and useful life time of high-speed passenger car brake discs

快速列车制动盘安全评定与 寿命预测模型

We don 't want to overwhelm with trivia ; but to some degree of useful division of time and resources .

我们不想被琐事压垮；但在某种程度上应该 擅于把 时间和资源划分成小块。

However because of the increase of the construction scale and speed and useful time the durability and safety problem of high-piled wharf becomes more serious .

但是随着建设规模和速度的提高，以及 使用 年限的增长，高桩码头的耐久性与安全性问题越发突出。

After strength calculation to the bearings of rotating arms several bearings can have a risk with short useful time in design scheme then the improving solutions is designed and present .

通过对试验台转臂上所有轴承进行强度计算，发现设计方案中个别轴承的 使用 寿命太短，提出了改进方案。

In order to study the relation between structural parameters and work efficiency or useful time a nonlinear dynamics model of a load was presented for air drilling motor .

为研究空气螺杆钻具结构参数与其工作效率及 使用 寿命的关系，建立了空气螺杆钻具一个导程的非线性动力学模型。

Waiting outside means wasting useful time .

在外面等就是浪费 有用 的 时间。

The fluorine mixed gas prepared by this device which may prolong the working hours of excimer-laser 2 to 3 times and prolong the average useful time of lens of laser 3 to 5 times .

按规程应用该装置配制的含氟混合气，可以使准分子激光器的 有效工作时间延长2~3倍，激光器中镜面的使用 寿命平均延长3~5倍。

They feel they should be doing something useful with their time .

他们感到应该用他们的 时间做些 有用的事情。

The reliability of GM counter tubes should be described by useful time before failure life and failure rate during life .

GM计数管的可靠性应当以失效的 工作 时间- 寿命，以及在寿命期间的失效率来表征。

In order to improve the useful time of distribution chute of larger blast furnace design principle and the effect on distribution rule caused by chute structure parameters were discussed .

为提高大高炉布料溜槽的 使用 寿命，探讨了溜槽设计的原则和结构参数对布料规律的影响。

By means of theory analysis and experiment computing the paper researches modeling algorithms discriminant function and other questions about time series identification system and establishes a useful time series identification system of steam turbogenerator unit rub vibration state .

通过理论分析和试验计算，研究了 时序识别系统的建模算法及判别函数等有关问题，建立了一个 有效的汽轮发电机组的摩擦振动状态识别系统。

So you can scroll back through your history which is also useful for time 's sake .

所以我们可以滚回到我们的历史记录，这个 可以 节约我们的 时间。

This is useful every time a re-installation of your product is done in the appliance and the older data is required for your product to be able to perform the same processes and functions as before .

在设备中重新安装产品 时， 非常 有用。您产品需要旧数据能够执行与之前相同的流程和功能。

These new methods can be practiced as a real-timedownhole gas influx detection technique during drilling process and can save useful time fordealing with blowout and other well troubles .

这三种新技术均可在钻井的过程中实施随钻气侵检测，为处理井喷和其它井眼事故赢得 宝贵 时间。

It can be useful any time you need to turn a text document into XML .

在需要将文本文档转换成XML的任何 场合，它都很 有用。

Selection of Useful Time in Measuring the Optical Properties of Biological Tissues with Two-Detector Method

两点法测量组织光学特性中 有效 时间的选择

Datetime contains useful date and time manipulation functions .

datetime包含 有用的日期和 时间处理函数。