For unsaturated air, dry bulb temperature, wet bulb temperature, A The relationship between point temperature is ____________ .
In the low-voltage power distribution system,N The role of the wire is to return the AC operating current.
PUE The closer the value ____________, indicating that the energy efficiency status of the data center is good.
Use POE When interface, it has two functions of communication and power supply.
Huawei Monitoring System Neteco Can only access support SNMP Protocol equipment.
The following ____________ Yes UPS N The advantages of the system.
MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.
Which of the following descriptions about the air supply method from top to bottom is correct ____________ .
RER It is used to measure the use of renewable energy in the data center to promote the regeneration of solar, wind, and water energy, and the use of energy with no carbon emissions or very little carbon emissions.
UPS The front-end input can be two mains, one main and one standby, or one mains and one diesel engine input.
TESTED 16 Oct 2025