本文给出在中国分类之下二次微分系统有中心时两种情况的通积分。
We give general integral of quadratic differential system with center in two cases under the Chinese classification.
本文对几类二阶非线性常微分方程，利用首次积分求得了其通积分公式。
This paper has found general integral formulas of some types of two - order nonlinear ordinary differential equations by first integral.
借助变量代换、迭代等方法，提出几类新的高阶常微分方程，给出其相应的通积分公式。
By means of variable substitution and iterative method, this paper puts forth some new higher-order differential equations, and gives their formula of reduction of integrals to common denominator.
利用改进的磁通积分算法，克服了纯积分器直流漂移和初始值问题，消除了一阶低通滤波器的幅值和相位偏差。
The DC drift and initial problems of pure integrator were overcome, and the magnitude and the phase error of one-order low pass filter eliminated by using a novel integration method.
导通率控制和带符号变速积分PID软件比较新颖。
The software of the duty factor control and the variable speed integrating PID with symbol are newer.
对于数列通项含有积分的极限问题，文章以定理形式总结概括出两类数列极限存在的充分条件，并附以实例。
As to the limit question of integral included in sequence terms, the paper summarizes two adequate conditions for integral limit from the theorem and provides some examples.
通过用二个延迟回路的转子磁通推算器代替积分器，实验结果表明具有良好的响应特性。
This paper investigates the rotor flux estimator which replace integrators with two lag circuits. The experimental results indicate good speed responses.
DCZ4多功能低频振动测量仪是一种具有低通滤波、高通滤波和重积分功能的先进振动测量仪。
The DCZ4 vibration measuring instrument is an advanced multi-function and low-frequency instrument for low pass filter, high pass filter and double integration.
以来来超级市场积分转换为「亚洲万里通」里数，每次须最少转换5，000分（相等于200「亚洲万里通」里数），最多转换25，000分（相等于1，000「亚洲万里通」里数）。
The minimum amount of Royal Supermarket points for conversion is 5,000 points (equivalent to 200 Asia Miles), while the maximum amount is 25,000 points (equivalent to 1,000 Asia Miles).
个人八达通持有人如经常乘搭轻铁，可享有10%至28.2%不等的积分优惠。
Personal Octopus holders who travel frequently on the LRT enjoy frequent-user bonuses ranging from 10 to 28.2 per cent.
控制算法采用变结构控制器，可根据系统误差及其变化率的大小自适应选择通断控制、模糊控制、积分控制等控制策略。
System control arithmetic adopts variable-structure-control, which can choose on-off-control and fuzzy-control and integral-control strategy automatically.
空调自控阀门主要有：电动二通阀、比例积分电动二通阀、电动执行机构、温控器等系列产品。
The air conditioning auto-control valve includes electric two-way valve, proportional-integral electric two-way valve, electric actuator, temperature controller etc.
空调自控阀门主要有：电动二通阀、比例积分电动二通阀、电动执行机构、温控器等系列产品。
The air conditioning auto-control valve includes electric two-way valve, proportional-integral electric two-way valve, electric actuator, temperature controller etc.
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