Chemical engineering students are conducting experiments in the lab.

化學工程專業的學生正在實驗室裡進行實驗。

They must learn how to use measuring cylinders and other laboratory instruments.

他們必須學習如何使用量筒和其他實驗室儀器。

Performing chemical experiments can be quite hazardous, so it's essential to pay special attention to safety.

進行化學實驗可能非常危險，因此必須特別注意安全。

Proper use of protective equipment and following safety protocols are crucial to prevent accidents.

正確使用防護設備並遵守安全規程對於預防事故至關重要。

The students are practicing wiring the control panels.

學生們正在練習控制面板接線。

For instance, they need to learn how to wire for switching between the main power supply and the backup generator.

例如，他們需要學習如何接線以在主電源和備用發電機之間進行切換。

In case of a main power outage, they can seamlessly switch to the generator to maintain power.

如果發生主電源停電，他們可以無縫切換到發電機來維持供電。

Another important aspect is ensuring electrical safety by installing devices that can cut off the power automatically if they detect any electrical faults.

另一個重要方面是透過安裝在檢測到任何電氣故障時自動切斷電源的裝置來確保電氣安全。

The student is practicing using a multimeter to test electrical resistance.

學生正在練習使用三用電表測試電阻。

A multimeter is a versatile tool that can measure voltage, current, and resistance in electrical circuits."

三用電表是一種多功能工具，可以測量電路中的電壓、電流和電阻。

By using the multimeter, students can learn how to troubleshoot and diagnose electrical issues effectively.

透過使用三用電表，學生可以學習如何有效地排除和診斷電氣問題。

The teacher is instructing the students on how to inspect the electrical circuits of refrigeration and air conditioning systems.

老師正在指導學生如何檢查冷凍空調系統的電路。

Refrigeration and air conditioning systems, including refrigerators and air conditioners, require thorough troubleshooting.

冷凍空調系統，包括冰箱和空調，需要徹底排除故障。

If there is an issue with the weak circuit, the compressor will not function properly.

如果弱電路出現問題，壓縮機將無法正常運作。

They first eliminate any circuit issues before checking the compressor or refrigerant problems.

他們首先排除任何電路問題，然後再檢查壓縮機或冷媒問題。