定时

C and ASM prepared to do with timing simulation of serial procedures.

详细说明： C和ASM编写的用定时做的模拟串口程序。

The upside in the coping of reative cell and flank sets aspersion shower nozzle, time, aspersion of surface of grey grain of mensurable Xiang Shi, make the surface of limestone covers film of a thin water, when flue gas has spread every reative cell, the SO2 in flue gas and the limestone grain that covering water film undertake osculatory, in entering water film through diffusing, with limestone happening chemistry reacts, 80% above are the by-product that reaction produces gesso crystal.

反应室的顶部和侧面中上部设有洒水喷头，定时，定量向石灰颗粒表面洒水，使石灰石的表面覆盖一层薄水膜，当烟气流过每个反应室时，烟气中的SO2和覆盖着水膜的石灰石颗粒进行接触，通过扩散进入水膜中和石灰石发生化学反应，反应产生的副产物80%以上为石膏晶体。

The timers can be used in various combinations of astable or monostable circuit connections, with or without modulation, for extremely flexible waveform control.

定时器可用于各种非稳和单稳电路的组合中，无论调节与否，都可实现高度灵活的波形控制。

Timer is a kind of multipurpose numeral- imitate the hybrid integrated circuit, in addition to constituting single multivibrator, astable multivibrator, Schmitt trigger , can also connect many useful electric circuit, all got the application in the creation and varieties of a wave form, measure and control, home appliances, the electronics toy wait many realms.

555定时器是一种多用途的数字-模拟混合集成电路，除了可以组成单谐振荡器、多谐振荡器、施密特触发器以外，还可以接成许多种有用电路，在波形的产生与变化、测量与控制、家用电器、电子玩具等许多领域中都得到了应用。

When the async parameter is specified you may also specify an optional timeout for the method.

在async参数被指定时，你也可以为这个方法说明一个timeout的可选项。

The body needs food at regular intervals.

身体是定时需要食物的。

In order to improve the quality of decisions it is important to evaluate them at the time of deciding.

为了提高教育质量的决定，重要的是，以评估他们在作出决定时。

With the development of science and technology, sensitive, rapid, reproducible, simple and accurate analytical methods are required for the determination of trace elements in geological, biological and environmental samples. The direct determination of extremely low concentration of trace element with modern atomic spectroscopic method, such as atomic absorption spectrometry is so difficult. On one hand, the limitations are associated not only with the insufficient sensitivity of these techniques but also with matrix interference.

随着科学技术技术的发展，在进行地质、环境、生物等样品中痕量金属元素的测定时，常常要求达到ppb级的水平，虽然火焰原子吸收分光光度法具有很高的灵敏度，但是要直接测定这些样品中的痕量组分却很难，这是因为，一方面，样品本身的物理化学状态有的不适合直接测定，或组分的含量低于分析方法的灵敏度；另一方面是存在基体干扰。

Simulation results show that, for the fixed sampling frequency, the error rises with the frequency increasing of periodic signal, and decreases with the attenuation time constant increasing of non-periodic signal. The sampling frequency determines the upper limit of appropriate frequency band directly. The research provides the basis for the selection of cutoff frequency in filter design.

仿真结果表明，在采样频率确定时，对于周期信号，计算误差随频率的增加而增大，而对于非周期信号，计算误差随衰减时间常数的增大而减小，采样频率大小决定了插值法用于分布参数模型的适用频带上限，该研究为滤波器设计中截止频率的选择提供了依据。

In order to hold the best time for irrigating agriculture crop and reducing the burden of peasants, and improve the autoimmunization of irrigating agriculture crop.

为了把握农作物的最佳喷灌时间，减轻农民劳动负担，提高农作物喷灌的自动化水平，设计了钟控定时喷灌器。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。