At present, the communication methods used by the dynamic environment monitoring system are ____________ .
Use POE At the interface, it has two functions: pass and power supply.
The following parts can check whether the refrigerant contains moisture ____________ .
In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.
MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.
During the construction process, the operation with debris splashing should be used ____________ .
According to different classifications of electrolytes, batteries can be divided into ____________ and ____________ .
____________ is used to ensure that the fire extinguishing agent has been sprayed out in a specific jet form to promote the rapid gasification of the fire extinguishing agent and reach the fire extinguishing concentration in the protected space.
In the main road mode, when ups The front-end voltage is at 220V±10%When fluctuating,ups The output voltage will also have Larger fluctuations.
The following outdoor unit models belong to dual fans are ____________ .
