四、請將下列對話翻譯成中文 (20%)
Dialogue 1 Inspection of emergency generator
A: Please start the emergency generator and keep it running for half an hour.
B: No problem. The emergency generator is starting now.
A: Check the emergency switchboard.
B: It's in a good condition, sir.
A: Can the emergency generator be started automatically when the main power supply fails?
B: Yes. It can be started automatically or we start it at its location.
A: Is there a change-over switch?
B: Yes. Here it is.

Dialogue 2 Taking over the exhaust boiler
A: Please tell me something about the exhaust boiler.
B: It is a fire tube boiler. The capacity is 1.0 ton per hour; the heating surface is 150 m².
A: How much is the working pressure?
B: 0.4 MPa.
A: When did you clean it last?
B: Last month.
A: How often do you analyze the boiler water?
B: It is done in accordance with the product statements of the company.

Dialogue 3 Talking about pump arrangements
A: How are the pumps arranged?
B: This is the arrangement diagram. Look, this is the bilge pump, and this is the freshwater pump.
A: Where is the ballast pump?
B: It's over there.
A: What's the output of one ballast pump?
B: About 100 m³/h.
A: Do you test the emergency fire pump regularly?
B: Yes, I do.