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50HZ

网络50赫兹；心跳50赫兹预告

50HZ

50HZ

50HZ

50赫兹

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心跳50赫兹预告

CHESKY-... ... 26 Organ & Chimes 琴瑟和鸣 29 Heartbeat Announcement:50 Hz 心跳50赫兹预告 30 50 Hz Heartbeat 心跳50 …

1

Able to directly control AC 50Hz, 380V asynchronous motor with the protection of overload , phase -failure and voltage-absent.

可控制交流 50Hz，380V ，三相异步电动机的直接起动停止，并具有过载和断相及失压保护。

2

The power frequency (50Hz) into the exchange of arbitrary frequency, arbitrary voltage inverter device known as the inverter.

把工频电源（50Hz ）交流变成任意频率、任意电压的逆变装置称为变频器。

3

To eliminate the interference of 50Hz alternating current, a digital high-pass filter is designed .

设计了用于抗 50Hz 工频干扰的数字高通滤波器。

4

Rated frequency is 50Hz. The JP2 double-speed finishing motors are with speed -change switch for changing quick or slow speed easily.

额定频率为 50Hz，JP2D 双速磨光电机可带速度转换开关，方便快慢速度的转换。

5

If you live in a country where the power line frequency is 50Hz (eg European countries). . .

如果你生活在一个国家里，电力线的频率是 50 赫兹（如欧洲国家）…

7

but in an interlaced format and at frame rate of 25 (in countries with 50 Hz power ) and 30 (in countries with 60 Hz power ).

但在隔行扫描格式，为 25 帧速率（50Hz 电源的国家）和 30 帧速率（60Hz 电源的国家）。

8

Zw8-12 series outdoor high voltage vacuum circuit breakers, are used in three-phase AC 50HZ 10KV power system.

12 系列户内高压真空断路器用于三相交流 50HZ 电力系统。

9

10

The Effects of 50 Hz Magnetic Field on the Content of Some Important Metal Element in the Cerebral Cortex of the Old Rats

50Hz 磁场对大龄大鼠大脑皮层金属元素含量的影响

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