调零

On the base of roundly analyzing and studying the running mode of the sensorless BLDCM, we explain theories and realizable methods of detecting back electromotive force, phase verdict and phase compensation in detail.

在全面分析研究了无位置传感器无刷直流电动机运行方式的基础上，细致阐述了反电势过零检测、相位判断及相位补偿的原理及实现方法，并且为了在较宽的范围内提高BLDCM的调速性能，采用了数字式转速闭环控制。

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, display precision adjusted and real-time graduation.

其关键技术包括：双积分A/D转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, display

其关键技术包括：双积分A/ D 转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, displayprecision adjusted and real-time graduation.

其关键技术包括：双积分A/ D 转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

Initialise: Run a program which sets all data values at nil and prepares a storage medium such as a floppy disc to be compatible with the system in use.

开化：使用程式，使所有数据调校为零，并准备存贮媒介，例如软盘，使它与该系统相容。

The transfer function of the LLC resonant converter can be obtained by using the circuit impedance, ratio of resonant inductance, and quality factor. With proper selection of the resonant tank and modulation of the operation switching frequency, the proposed circuit can achieve zero voltage switching, stabilize the output voltage, and then reduce the switching loss.

其后级之半桥LLC谐振式转换器藉由推导电路阻抗、谐振电感比例值与品质因数得到转移函数，以及利用适当的谐振电路的设计与切换频率的调变的方式达到输出电压稳定，并且令功率开关具有零电压切换之功用，以降低功率开关的切换损失。

Well, I'd like reschedule my flight for the tomorrow morning one at 05. is that possible?

是这样的，我想把我的航班调成明天早上9点零5分的，可以吗？

Federal Reserve, Bank of England and Bank of Japan, which have lowered their main rates to close to zero and are buying government and corporate bonds to reflate their economies.

欧洲央行已谨慎跟随美联储、英国央行和日本央行的步伐，调低其主要利率至接近零的水平，并购买政府和企业债券以推动经济增长。

Isn't that fall under the umbrella of what a man is supposed to do?

下一篇：想要灵感来临，把你的时钟调到午后十点零四分

Hydraulic pressure part consists of cylinder body around having some axial direction cylinders, pole piston, matching stream canister and timing equipment. Pyramidal difference decelerate part is composed of twin inner bevel wheel with difference of 2-toothes, twin outer bevel wheel without tooth difference and skew shaft etc.

液压驱动部分由周围均布有若干轴向缸的缸体、柱塞、配流筒及调速装置等组成，减速部分由二齿差内锥齿轮副和零齿差外锥齿轮周向限制副及歪轴等组成。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了