____________ The main function is electric energy distribution, which distributes the front-end electric energy to various types of electrical equipment according to requirements, standards and specifications, such as ups, Air conditioning, lighting system, etc.

The following four major components that are not air conditioners are ____________ .

During the construction process, the nitrogen bottle operation must be equipped with special ____________ .

The main fire extinguishing agent used in the data center fire protection system is ____________ .

Which of the following descriptions about the air supply method from top to bottom is correct ____________ .

The following air conditioners are comfortable air conditioners ____________ .

____________ is a fire detector that detects smoke particles.

UPS The functions are ____________ supply to the load when there is no mains.

Huawei Monitoring System NetEco Support through ____________, send alarm information to customers.

The valve-controlled sealed lead-acid battery safety valve has ____________ Function.