exhaust gas

exhaust gas的音标是[ɪɡˈzɔːst ɡæs]，基本翻译是“废气”。速记技巧可以是：谐音记忆：易记（一记）废气（gz）。

Exhaust gas这个词的词源可以追溯到拉丁语exhaurire，意为“抽干”或“排空”。这个词在英语中用来描述汽车或其他燃烧燃料的设备排放出的废气。

变化形式：在英语中，exhaust gas没有明显的变化形式。

相关单词：

1. Emission：这个词源自拉丁语emittere，意为“投射”或“排放”，通常用来描述气体、液体或其他物质的排放。

2. Ventilation：这个词源自拉丁语ventio，意为“呼吸”或“换气”，通常用来描述空气流通或废气排放。

3. Catalytic converter：这个词是由英语和西班牙语混合而成的，表示催化转化器，是一种用于减少汽车废气中污染物的装置。

4. Combustion：这个词源自拉丁语combustere，意为“燃烧”，通常用来描述燃烧过程。

5. Oxidation：这个词源自拉丁语oxidum，意为“氧化”，通常用来描述物质与氧气发生化学反应的过程。

Exhaust gas是一种有害物质含量极高的气体，对环境和人类健康都有很大的影响。因此，许多科学家和工程师正在研究如何减少汽车和其他燃烧燃料的设备排放的废气，以保护环境和人类健康。

exhaust gas

短语：

1. exhaust gas emission 尾气排放

2. exhaust gas analyzer 尾气分析仪

3. exhaust gas treatment 尾气处理

4. exhaust gas recirculation (EGR) 废气再循环

5. exhaust gas temperature (EGT) 尾气温度

6. exhaust gas analyser 尾气分析器

7. exhaust gas sensor 尾气传感器

例句：

1. The factory"s exhaust gas emissions are strictly monitored to protect the environment.

2. The exhaust gas analyzer is used to check the quality of the vehicle"s emissions.

3. EGR reduces harmful exhaust gas emissions by recirculating some of the exhaust gases.

4. The driver can tell if the engine is producing excessive exhaust gas by checking the temperature gauge.

5. The exhaust gas sensor measures the oxygen level in the exhaust stream to ensure proper fuel mixture.

6. The car"s catalytic converter helps reduce harmful exhaust gas emissions.

7. The engine produces a lot of exhaust gas, which can cause pollution if it is not properly controlled.

作文：

Exhaust gas is a by-product of internal combustion engines and is a major source of air pollution. It contains harmful substances such as carbon monoxide, hydrocarbons and nitrogen oxides, which can cause respiratory problems and damage the environment. To reduce exhaust gas emissions, engines need to be designed and operated efficiently, and emission control devices such as catalytic converters and particulate filters need to be installed. In addition, laws and regulations need to be enforced to ensure that vehicles comply with emission standards and are not a source of air pollution. By taking these measures, we can reduce the harmful effects of exhaust gas on ourselves and the environment.