主要是“发条装置”，电动操作的在下一个部分。
Mainly clockwork. The electrically operated are in the next section.
真正满足《安全规范》的紧急电动运行的电气操作装置必须严格具有停电应急和故障应急两种功能。
Electrically-controlled devices, which obey Security Guide in operation, must be able to strictly deal with two sorts of emergencies as power-cut and sudden failure.
另外，本发明还提供一种检测方法，该方法在具有上述手动操作装置的电动导向阀发生故障时，能检查导向阀的故障原因。
In addition, the invention further provides a detection method capable of detecting error reason of the pilot valve when the manual operation device for electric pilot valve breaks down.
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