求翻译：油机的正常运行要求油机室必须有良好的通风，对于不能满足通风要求的油机室需要安装送风机强制送风，但目前大多油机室的送风机都是手动控制。是什么意思？

The normal operation of the oil requirements of machine oil machine room must have good ventilation, can not meet the ventilation requirements for the machine room to install the oil forced air blower, but most of the oil machine room blower is manually controlled.

oil machine room for normal operation require oil machine must have good ventilation, and ventilation requirements cannot be met for the oil machine room blower forced air supply needs to be installed at present mostly oil machine room, but the blower is manually controlled.

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Oil-oil machine uptime requirements must have good ventilation, room for oil cannot meet ventilation requirements need to install a blower to force air, but now mostly oil room blowers are controlled manually.

Normal running of oil machine require oil machine room must have good ventilation, as to unable to satisfy oil machine room required to ventilate need installation forced draught blower blow by force, but most forced draught blowers of oil machine room are controlling at present manually.