Ascending workers should be equipped with the seat belts which is necessary and meeted the safetyrequirements, and use properly and reasonably according to the use of the provisions: meanwhile, should have guardian's guardianship.
Answer(s): A
Compared with the comfort air conditioning, what are the advantages of the equipment room dedicated air conditioning?
Answer(s): A,B,C,D
MCB circuit breaker C-level trip setting value between (_______________), used in IT load situations.
Answer(s): B
Cooling coil controls the indoor temperature and humidity via a heat exchange with refrigerant and indoor air.
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