电动机

In order to study the open-phase operation characteristics of line-start rare-earth permanent magnet motors,the field-circuit-motion directly coupled model for open-phase operation was established.

为了研究自起动稀土永磁电动机断相后的运行特性，建立了断相运行的场—路—运动直接耦合时步有限元模型。

To be repacked , the productivity is high, it is reliable to run, is suitable for cutting and making the medium and small-scale asynchronous motor in enormous quantities to cut slice unshakable in one's determination.

这种自动生产线可利用现有的冲床和模具等设备以及必要的电气控制系统等改装而成，生产率高，运行可靠，适用于冲制大批量的中小型异步电动机铁芯冲片。

Today, the two standard frequencies for generation, transmission, and distribution of electric power in the world are 60 Hz (in the United States, Canada, Japan, Brazil) and 50 Hz ( in Europe, the former Soviet republics, South America except Brazil, India, also Japan). The advantage of 60-Hz systems is that generators, motors, and transformers in these systems are generally smaller than 50-hz equipment with the same ratings. The advantage of 50-Hz systems is that transmission lines and transformers have smaller reactances at 50 Hz than at 60 Hz.

今天，60Hz(在美国，加拿大，日本和巴西使用)和50Hz(在欧洲，前苏联，除巴西以外的南美洲，印度以及日本使用)是世界上发电，输电和配电的两个标准频率。60Hz系统的优点在于系统中的发电机，电动机和变压器通常比同等级50Hz系统的设备小。50Hz系统的优点是传输线和变压器的电抗在50Hz时较60Hz时小。

Vibrator, Rammers, Petrol/ Diesel Engine, Electric Motor

专营名牌抽水机，电动机，汽油、柴油发动机，建筑机械以及零件。

Shuangzhu mechanical vehicle lift, which includes two box-shaped Jusheng pillar, two vertical sliding in the box-shaped piece of Jusheng-piece aircraft, two up and two track-holding arm, their identity is in Jusheng pillar box-shaped structure in part by the end of Liang-bed or carpenter's square or rectangle gear boxes and gear boxes on both sides of a square-short margin upward extension of the upper beam connecting a pillar overall; Jusheng pillar box is described below rectangle gear boxes installed electric motors is one of the driving boxes; and the piece-by-two parallel fixed in its orbit above the occasional arm-supporting, through the Hua Tao Kong spaces interlinked.

毕业论文字数：36721 页数：95 带图纸任务书说明书）摘要：双柱机械式汽车举升机，它包括两个框形举升柱，两个垂直滑动在该框形举升柱上的升降滑架，两个托臂和两个轨道式托板，其特征在于所述框形举升柱是由结构在下部的底板升底梁升矩形齿轮箱及矩齿轮箱两侧短边向上延伸的方形导柱连接上部的横梁构成的整体；所述框形举升柱下面的矩形齿轮箱其中一个是安装电动机的驱动箱；而所述升降滑架是由两个平行固定在其上的托臂穿过所述轨道式托板上滑套的孔位相互连接。

The pilot circuit of underground motor control systems in common use is analyzed and the problems existed in the circuits such as self starting and un intrinsically safety,are pointed out in this paper.

分析了目前矿井电动机控制系统先导电路的工作原理，指出了其存在自起动和非本质安全型等问题。

In view of these problems,an intrinsically safe pilot circuit for underground motor intelligent protective systems based on single chip microcomputer is given according to the design specifications of intrinsically safe circuits and the requirements of microcomputer control systems.

针对这些问题按照本安电路设计规范和微机控制系统的要求，设计了一个适合矿井电动机微机保护系统用的本安先导电路，对所设计的电路进行了试验研究并将其应用于矿用隔爆型电磁起动器。

VF speedregulating motor is adopted (in combination with planet differential gear) to form a rotation differential of 0.0167~ 0.025 r/min between the spiral propeller and the drum.

采用变频调速电动机（与行星齿轮差速器配套使用），使螺旋推进器与滚筒之间形成0.016 7～0.025 r/min的转速差。

When the common carrier 104 is rotated by a motor 301, a differential motion is generated between the two planet gear mechanisms.

当共同输送104旋转的电动机301 ，差分运动产生两者之间的行星齿轮机制。

On the base of the algorithm,the initia l power of the main motor of the MDQ 1800 low level high speed palletizer determ ined by load power is checked and modified according to time criterion, heating criterion and starting torque criterion and a new met...

在此基础上，对按照负载功率确定的初始功率按发热判据、时间判据和起动转矩判据进行了校核和修改，获得了一种高频起动的异步电动机的功率选择方法。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。