Bộ phận kỹ thuật ngắt nước rồi khắc phục sự cố.

It means the technical department or the technical team.

• bộ phận = department, section, unit
• kỹ thuật = technical, engineering

So bộ phận kỹ thuật refers to the group responsible for technical work, maintenance, repairs, and similar tasks.

Vietnamese normally does not use articles like the or a/an the way English does.

So bộ phận kỹ thuật can mean:

• the technical department
• a technical department

Which one is intended depends on context. In this sentence, English would usually translate it as the technical department/team.

Here, ngắt nước means to shut off the water or to cut off the water supply.

• ngắt = to cut off, disconnect, interrupt
• nước = water

In this context, nước means the water supply, not just water in a general sense. So the phrase is about stopping the flow of water temporarily, probably so repairs can be done safely.

They are very similar, and both can refer to stopping the water supply.

A rough difference:

• ngắt often suggests disconnecting/interruption
• cắt often suggests cutting off

In many real-life situations, they overlap. Depending on region or context, one may sound more common than the other. In this sentence, ngắt nước sounds like the technical team temporarily shuts the water off before fixing the problem.

Here rồi means something like then, and then, or after that.

It connects two actions in sequence:

1. ngắt nước = shut off the water
2. khắc phục sự cố = fix the problem

So the sentence shows an order: first they shut off the water, then they deal with the issue.

Important: rồi does not always mean already. In this sentence, it mainly marks sequence.

It means to remedy/fix the problem, to resolve the incident, or to repair the fault.

Breakdown:

• khắc phục = to overcome, remedy, fix, correct
• sự cố = incident, malfunction, problem, fault

Together, khắc phục sự cố is a very common formal or technical expression for dealing with a problem, especially in maintenance, utilities, engineering, or customer notices.

Both can be translated as problem, but they are not exactly the same.

• sự cố often means a fault, malfunction, breakdown, or incident, especially in technical or service contexts
• vấn đề is a broader word meaning issue or problem in general

So in a sentence about water service and a technical team, sự cố is more natural because it sounds like a service fault or system problem.

The structure is:

Subject + Verb phrase 1 + rồi + Verb phrase 2

In this sentence:

• Bộ phận kỹ thuật = subject
• ngắt nước = first action
• rồi
• khắc phục sự cố = second action

So the order is very straightforward: The technical department shut off the water and then fixed the issue.

Vietnamese verbs do not change form for tense the way English verbs do.

So ngắt and khắc phục stay the same whether the action is past, present, or future. The time is understood from:

• context
• time words
• the situation

This sentence by itself could mean something like:

• The technical team shut off the water and then fixed the problem
• The technical team will shut off the water and then fix the problem
• The technical team shuts off the water and then fixes the problem

In practice, context tells you which one is correct.

Yes, it could be omitted, but the sentence would feel a little less explicit about the sequence.

• Bộ phận kỹ thuật ngắt nước rồi khắc phục sự cố. = clearly shut off the water, then fix the problem

• Bộ phận kỹ thuật ngắt nước khắc phục sự cố. = harder to parse and less natural

So in this sentence, rồi helps the listener understand that these are two separate actions done one after the other.

Yes. It sounds quite natural in a formal or semi-formal service/maintenance context, such as:

• building management notices
• utility service announcements
• repair updates
• maintenance reports

Phrases like bộ phận kỹ thuật and khắc phục sự cố are especially common in official or technical communication.