直流的

FM DC with high accuracy of carrier frequency for testing pagers and receivers fitted with digital squelches.

调频直流精度高的载波频率测试呼叫器和接收器配有数字 squelches 。

FM DC with high accuracy of carrier frequency ftesting pagers receivers fitted with digital squelches.

调频直流精度高的载波频率测试呼叫器和接收器配有数字 squelches 。

The water streamed out of her hair and clothes, and it ran into her shoes.

雨水顺着她的头发和衣服流下来，一直流到了鞋子里。

In this thesis, the Brushless DC Motor control system of Magnetic Suspending Flywheels based on DSP technology is researched .

论文对基于DSP技术的磁悬浮飞轮无刷直流电机控制系统进行了研究。

By using VDMOS field-effect transistorsas the switch elements, the electronic controlling circuits of the PM brushless DC motor, including the main power switch circuit , power driving circuit, absorption circuit, and logic controlling circuit, are designed.

用 VDMOS场效应晶体管作为开关元件，设计了稀土永磁无刷直流电机的电子控制线路，主要包括：功率开关主回路，功率驱动回路，吸收回路，逻辑控制电路。

I plant the production of welding equipment and cutting equipment SCR rectifier arc welder, SCR DC argon arc welding machine, AC arc welder, air plasma cutting machine and carbon dioxide gas shielded welder six series, more than 20 varieties.

我厂生产的焊接设备和切割设备可控硅整流弧焊机、可控硅直流氩弧焊机、交流弧焊机、空气等离子切割机和二氧化碳气体保护焊机等六大系列，二十多个品种。

Shanghai Peoples Welding Machine Manufactory is a professional state owned manufactory which produces welding equipment, whose products mainly include five large categories:DC arc welder, argon arc welder, air plasma cutter, resistance welder etc.

上海人民电焊机厂是一个专业生产焊接设备的国营企业。主要产品有交、直流弧焊机、氩弧焊机、空气等离子切割机，电阻焊机等五大类常用焊机。

B DC high voltage power supply circuit short circuit, high voltage filter capacitor should check whether the breakdown leakage current, filament transformers for filament winding of whether the earth leakage, tube bracket fixed capacitor (high-frequency coupling capacitor) whether the breakdown leakage, rectifier diodes have breakdown short-circuit phenomenon

b 直流高压供电回路短路，应检查高压滤波电容是否击穿漏电、灯丝变压器的灯丝绕组是否对地漏电、电子管支架固定电容是否击穿漏电、整流二极管是否有击穿短路现象

First state reconstruction techniques are used to transform the DC motor model into a cascaded structure and,then,nonlinear adaptive back-stepping controller is designed which is robust to the parameter uncertainties and load torque disturbance.

首先通过状态重构将直流电机系统模型转化为级联结构，其次考虑参数不确定及转矩干扰设计具有鲁棒性的自适应反向步进控制器。

Ni nanowire arrays compounded with Zn were fabricated by electrodeposition using porous anodic aluminum oxide membrane as templates in acidic coating bath at room temperature.

采用直流电化学沉积方法，在多孔阳极氧化铝模板纳米孔洞中制备出直径约90nm，长度超过10μm的金属Ni/Zn纳米线有序阵列。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。