three constant的例句大全

The welding power source made of three-phase half-control bridge thyristor rectifier provided four kind of static output characteristics which were constant current, constant voltage, quick and slowly current descending.

焊接电源采用三相半控桥晶闸管整流电路，用不同方法计算偏差进行多变量数字解耦PI调节获得恒流、恒压、陡降和缓降四种输出静特性。

Based on study on the characterization of three dimension and constant wavelength synchronous fluorescence spectra, the similarity and characteristic peaks of various crude oils and natural gases have been proposed.

通过对全国各大油田典型油气的分析，提出各种油气的三维荧光光谱和固定波长同步荧光光谱特征峰和共性峰。

This paper introduces the formulas for calculating the inner forces and deformation of non-circular arches with the fundamental formulas, these non-circular arches including parabolic, three-centered, elliptic, hyperbolic and logarithmic spiral arches under constant loads can be calculated.

本文以圆弧拱坝的形、载常数的基本公式为基础，推导了等厚抛物线、三心圆、椭圆、双曲线及对数螺旋线等拱圈的内力、变位计算公式。

Three generations with constant development of society, it obey concrete content of system change to some extent too Xia, Shang and Zhou dynasties, especially the internal and external clothes of Western Zhou Dynasty are made and changed a great deal more than the former generation.

夏商周三代随着社会的不断发展，其内外服制度的具体内容也有所变化，尤其是西周的内外服制较前代有很大的变化。

An optimization method for fitting three parameter equation of constant amplitude P S N curve is presented.

等幅疲劳P-S-N曲线采用三参数幂函数方程形式。

Its application in the high energy ignition controll system realizes the most important three functions namely, constant current, dwell angle controlling and protection during supply interruption and circuit breaking off.

它在高能点火控制器中的应用，实现了专用点火芯片中最重要的3种功能，即恒流、闭合角控制及停电断电保护。

This paper considers three epidemic models with constant immigration rate and nonlinear infectious force. They are SIRI model, differential susceptibility model of SIRI, and differential infectivity model of SIR.

讨论了具有常数迁入和非线性传染力的三类传染病模型，即SIRI模型，SIRI框架下的DS模型及SIR框架下的DI模型。

It is emphatically pointed out that although the instantaneous generation rate of every phase of the heater is a periodic function alternating with time, the sum of the instantaneous generation rates of three phases is a constant.

特别指出，电热元件每一相电热丝的瞬时发热率是随时间而变化的周期函数，但三相瞬时发热率之和是一常数。

The dependent equations, given in this paper, of the classical electromagnetic field in three dimensional space are initial conditions that make the integral constant equal to zero.

本文给出的在三维空间中经典电磁场非独立的场方程，就是使积分常数为零的初始条件。

Numerical experiment results are presented for one dimensional three-body collision dynamical equations with different masses and elastic constant.

文中建立了三体碰撞过程的动力学方程组，对一维完全弹性三体碰撞进行了数值实验研究。

In addition, the electric control system uses three states-controlled constant temperature circuit, which is convenient, reliable and accurate.

电器控制系统采用三态恒温控制电路，炉温调控方便、可靠、精度高。

The former can convert the unstable three-phase alternating current output of the generator into constant direct voltage, which will be used by the anti-skid device and the lead-acid battery.

电力变换电路由硬件电路实现，可将发电机输出的不稳定的三相交流电转换为电压恒定的直流电，供电子防滑器直接使用及为铅酸蓄电池充电。

In variable-frequency drives of AC motor, it needs to control the relevant variables to ensure three-phase equilibrium of the sinusoidal input current in order to keep the electromagnetic torque of AC motor constant.

异步电机的变频调速，需要控制相关变量，保证异步电机输入三相平衡的正弦电流，这样才会合成恒定的电磁转矩。

The K-K equation that is based on the theory of vapor-liquid equilibrium is also used to calculate methane solubility in three-phase equilibrium hydrate system. The parameters in this K-K equation, like Henry law constant, are experimentally determined under incipient clathrate hydrate formation condition or empirically computed.

基于气-液二相平衡理论的K-K方程，在临近水合物生成条件下实验或计算确定亨利常数等参数后，可计算三相平衡甲烷水合物溶解度，且简单易用。

This Paper analyses the disadvantages of the current method for testing EDM additive constant and arrives at a conclusion that periodic error contaminating EDM additive constant is very severe. Three optimum methods are then given by this Paper.

本文首先分析了红外测距仪加常数现行检测方法的弊端，得出结论是周期误差严重污染加常数，进而提出净化加常数的三种方法；

Automatic voltage regulator for constant current charging three-phase full wave constant voltage rectifier

恒流充电用自动调压器三相全波恒压整流器

The three-point bending tests were carried out at various temperatures and constant loading rates.

在不同的温度和加载速率下进行了三点弯曲试验。

Acomplete model for three-way pipe was established by combining the pres-sure loss model and constant pressure model.

由此所建立的压力损失模型同等压模型组合得到了一个完整的三分支通用模型。

There were three stages in the course of reaction: accelerated, constant rate and decelerated stages.

通过研究发现，在聚合反应过程中分三个阶段：加速阶段、恒速阶段及减速阶段。

The author deals wite the stability of a three molecular reaction model with constant input.

本文讨论具有常量输入的三分子反应模型的稳定性。