定时

Disk-io is processed by Linux aio, and efficient disk block cache management algorithm has been proposed.

系统中存在大量的定时器，在Reactor框架中实现了高效的定时器管理。

This paper analyzed and researched the characteristics of Schmitt trigger, single-stable-state trigger and astable multivibrator constituted by 555 timer based on PSPICE. Against the phenomenon of astable multivibrator constituted by 555 timer has no oscillation in PSPICE, an effective analysis method was brought out for 555 timer circuit to simulate the actual oscillator.

作者在文中应用PSPICE对555定时器构成的施密特触发器、单稳态触发器和多谐振荡器的工作特性进行了仿真分析和研究，针对PSPICE中555定时器构成的多谐振荡器不起振的问题提出了模拟振荡电路的有效起振方法，对电子电路的分析与设计具有一定的参考意义。

If, however, you move the whole body to a time zone which is four h ours different, the two clocks will be out of step, like two alarm clock s which are normally set together, but which have been reset a few hours apart.

然而如果你把整个身体移到一个时差4个小时的时区，两个时钟就不再同步，正像两个闹钟通常被一起定时，但现在定时相差几个小时，两个闹钟通常同时报时，但现在则不同时间报时。

If, however, you move the whole body to a time zone which is four hours different, the two clocks will be out of step, like two alarm clocks which are normally set together, but which have been reset a few hours apart. Whereas the two clocks would normally sound their alarms together, now they ring at different times.

然而如果你把整个身体移到一个时差4个小时的时区，两个时钟就不再同步，正像两个闹钟通常被一起定时，但现在定时相差几个小时，两个闹钟通常同时报时，但现在则不同时间报时。

Secondly, based on the FO estimate, we formulate the timing error and channel estimation as a problem of composite hypothesis testing according to the first signal model, and then solve the problem by the composite hypothesis testing approaches.

该估计方法包括两步：第一步是根据第二个系统模型，推导了一种有效的最大似然频偏估计器；第二步是根据所获得的频偏估计值，利用第一个系统模型，将定时误差和信道估计表示成一个复合假设检验问题，然后再利用复合假设检验方法进行定时误差和信道估计。

The the probabilistic forecasting method of the error between the sample mean and expectation value of the random variable utilizing the central limit theory was researched, then the mathematical formula for the relation between sampling size and variance coefficient of loss of load probability was analyzed. Furthermore, the formulas for the relation between confidence intervals of variance coefficient and sampling size are deduced.

基于中心极限定理深入研究随机变量的样本均值与期望值之间误差的概率预测方法，在此基础上分析失负荷概率(loss of load probability，LOLP)指标的方差系数和样本容量之间的关系表达式，导出方差系数给定时的样本容量置信区间公式及样本容量给定时的方差系数置信区间公式。

The advantage of leading end discriminator is its simple structure, easy to realized and integrated.

恒比定时虽然能够消除幅度对定时的影响，但其结构相对比较复杂。

In order to solve the problem of demolition cutting of pipes in an ex-service nuclear-powered submarine , a cavity effect cutter and timed ignitor are designed and prepared on the basis of comprehensively considering various influential factors, and tests of cutting and timed detonating stainless pipe were carried out, the tests can be references in practice.

本文对退役核潜艇管道拆除切割问题，在综合考虑各方面影响因素的基础上，设计、制作了聚能切割器及其定时起爆装置，并进行了不锈钢管的聚能切割实验和定时起爆实验。

When in given La3 concentration,the longer treatment time,the larger the ratio of electrolyte exosmosis is.

当镧的浓度一定时，处理时间越长，电解质外渗率越大；当处理时间一定时，镧的浓度越大，电解质外渗率越大，对细胞膜的破坏越大。

Based on an analysis of the timer structure on the C54x, a new design scheme of an adiabatic timer is presented using the theory of three essential circuit elements for adiabatic circuits and the characteristics of the clocked transmission gate adiabatic logic circuit and its adiabatic flipflop.

为了设计低功耗定时器，首先利用钟控传输门绝热逻辑电路设计绝热触发器，然后在分析C54X的定时器结构基础上，利用绝热电路三要素理论，结合钟控传输门绝热逻辑电路及其绝热触发器的特性，提出绝热定时器的设计新方案。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐