Word · Frequency #26767
degassed
脱气；除去瓦斯
degassed is the past of degas.
remove gas from
“脱气”为化学术语
- 1.
To remove the gas from.
脱气；除去气体
脱气；除去气体；除去瓦斯；[化] 脱气
In use
This machine automatically degasses the oil before it is bottled.
We degassed the sample in the lab for ten minutes before testing it.
If you are degassing the liquid, keep the container slightly open.
degas sth
degas 是及物动词，直接跟被脱气的对象。
Degas the solvent slowly to avoid bubbles.
慢慢给溶剂脱气以避免气泡。
be degassed
被动语态强调动作的对象，常用于技术说明。
The sample must be degassed before analysis.
样品在分析前必须脱气。
degas sth by doing sth
用 by + doing 说明脱气的方式或手段。
You can degas the water by heating it gently.
你可以通过轻轻加热来给水脱气。
Verb forms
base degas · third person degasses · -ing degassing · past degassed · past participle degassed
规则动词，注意 -ing 和过去式双写 s。
Common mistakes
The liquid was degased under low pressure.The liquid was degassed under low pressure.
degas 重读尾音节以元音加单个 s 结尾，加 -ed 时要双写 s 成 degassed；degased 漏写了第二个 s，拼写错误。
Degasing the solvent removes dissolved air.Degassing the solvent removes dissolved air.
构成现在分词时同样需要双写词尾的 s，写成 degassing；degasing 不符合双写辅音规则。
The degas of the sample was slow.The degassing of the sample was slow.
汉语中“脱气”可作名词，但英语里 degas 是动词，名词形式是动名词 degassing；把 degas 直接当名词使用属于词性误用。
Connections
Collocations
- degas the solvent
- 使溶剂脱气
- Degas the solvent before using it in the HPLC system.在高效液相色谱系统中使用前，先将溶剂脱气。
- degas under vacuum
- 真空脱气
- The mixture is degassed under vacuum to remove dissolved air.混合物在真空下脱气以去除溶解的空气。
- degas the sample
- 给样品脱气
- You should degas the sample thoroughly before measuring its density.测量密度前，你应该彻底给样品脱气。
- degas the water
- 除去水中的气体
- Degas the water first to prevent bubble formation.先除去水中的气体以防产生气泡。
- degas the melt
- 使熔体脱气
- The molten polymer is degassed to improve the quality of the final product.对熔融聚合物进行脱气以提高最终产品的质量。
Learner notes
Memory Tip
把 de 想成“去掉”，gas 是“气体”，degas 即“脱气”。想象开瓶放气让气泡跑光。（仅为助记，非词源）
Context & Register
语域：formal 常见场景：chemistry lab、industrial processing 作动词时属于技术性用语，通常用于化学或工业加工等书面/专业语境，日常口语中较少出现；口语中可说 remove gas from。
Pronunciation & Spelling
All six words rhyme with the stressed /-gæs/ of "degas" in American English. Be careful with "degauss" (/diːˈɡaʊs/), which looks similar but has a different vowel sound.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.