The following components that can improve the heat exchange capacity of the heat exchanger are
____________ .

Comment: *

Name: *

Email: *

Verification: *

During the construction process, carry out low-voltage live work ____________, should be used
____________ .

Comment: *

Name: *

Email: *

Verification: *

At a certain atmospheric pressure and water vapor content, the air is cooled down. When the air reaches saturation, it will continue to cool down. The temperature at the time of condensation is ____________ .

Comment: *

Name: *

Email: *

Verification: *

In the low-voltage power distribution system,N The role of the wire is to return the AC operating current.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

It can be implemented in the alarm management function of the dynamic environment monitoring system
____________ .

Comment: *

Name: *

Email: *

Verification: *