查询词典 below zero

A zero crossing detection is synchronized which the zero crossing point of the line voltage of each of the three phases.

一个过零检测同步其中的三个阶段的每线电压过零一点。

Terminal voltage is determined by a cut-and-try solution such that the summation of reactive volt-amperes equals zero. Slip is determined from the relation that the summation of the real powers equals zero, and then frequency is obtained.

根据虚功率总合为零的原则，可求出感应发电机之端电压值，以及有效功率总合等於零的原则，求出转差率及频率来。

Can be seen, no overload is the essence of the centrifugal pump, pump shaft power curve peak, or shaft power with the increase of flow rate changes are small, relatively flat power curve that axis, so that the pump shaft power in the dead lift off to zero head (that is, from zero flow to maximum flow rate) are less than equal to the original context of the supporting motive power.

可见，无过载离心泵的实质是指，泵的轴功率曲线有峰值或轴功率随流量的增加而有较小的变化，即轴功率曲线比较平坦，使泵的轴功率在关死扬程到零扬程范围内都小于等于原动机的配套功率。

Speaking at the end of a decimal fraction of the size of the change to remove the zero point of this knowledge, do the exercises when I found a child in the 2 to 200 after the zero is also removed 啦, how do I let him remember it, I'll seize this details.

在讲小数末尾去掉零小数的大小不变这个知识点时，做练习时我发现一个孩子把200中的2 后面的零也去掉啦，我怎么让他记住呢，我就抓住这个细节。

Monetary easing--even unorthodox--is like pushing on a string when （1） the problems of the economy are of insolvency/credit rather than just illiquidity;（2） there is a global glut of capacity （housing, autos and consumer durables and massive excess capacity, because of years of overinvestment by China, Asia and other emerging markets）, while strapped firms and households don't react to lower interest rates, as it takes years to work out this glut;（3） deflation keeps real policy rates high and rising while nominal policy rates are close to zero; and （4） high yield spreads are still 2,000 basis points relative to safe Treasuries in spite of zero policy rates.

因为目前存在四方面问题：（1）金融层面的问题不仅是流动性不足，还在于资不抵债；（2）由于中国、亚洲及其他新兴市场持续多年的过剩投资，在住房、汽车、耐用消费品等领域形成了庞大的全球性产能过剩；（3）尽管名义政策利率已接近零点，但通缩却使得实际政策利率居高不下，甚至继续上升；（4）尽管政策利率接近零点，但高风险的高收益证券与安全的美国国债之间的利差仍高达2000个基点。

Examples illustrate that some special properties of the diagonally dominant matrix with chain of non-zero elements probably doesn't come into existence for quasi diagonally dominant matrix with chain of non-zero elements.

譬如目前关于拟对角占优矩阵的判定定理就有数十条之多[6-7]，至今仍有许多相关结论发表，其中杨志明[1]给出了拟具非零元素链对角占优矩阵的定义，并就这类矩阵的特征值的分布情况进行了讨论。

A preferred method of calibration, intended for the convenience of manufacturing, would measure the V OS when there is zero load current (zero input differential voltage).

阿标定的首选方法，对拟生产的方便，将测量的 V OS为零时，负载电流。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

On the filling discs and Borel directions of quasimeromorphic mapping of zero order ;2. The growth of zero order random Dirichlet series in the plane was studied.

研究了当随机变量列{Xn}满足一定条件时，平面上零级随机Dirichlet级数的增长性，得到了关于它们增长性的一些结果。

Property Management Department also reflected the larger population as a zero-maintenance services, re-revised zero maintenance management, and formulated the "going into the households maintenance standardized service standards," a "three one" service standards, namely : into people's homes to carry a dishcloth, a piece of land cloth, a pair of Galosh.

物业管理处还把居民反映较大的零维修服务作为突破口，重新修订了零维修管理办法，制订了《入户维修规范化服务标准》，实行"三个一"服务规范，即：入户要随身携带一块抹布、一块地布、一双套鞋。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。