1
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。
脱气；除去瓦斯
degassed — past of degas
先理解核心含义，再看它在真实句子里的用法。
脱气；除去瓦斯
remove gas from
Degas the solvent slowly to avoid bubbles.
慢慢给溶剂脱气以避免气泡。
“脱气”为化学术语
脱气；除去气体
To remove the gas from.
degas
Base
原形
degasses
3rd person
第三人称单数
degassing
-ing
现在分词
degassed
Past
过去式
degassed
Past participle
过去分词
We degas the water before the experiment.
我们在实验前给水脱气。
They degassed the vacuum chamber yesterday.
他们昨天给真空室脱了气。
The machine is degassing the sample now.
机器正在给样品脱气。
规则动词，注意 -ing 和过去式双写 s。
This machine automatically degasses the oil before it is bottled.
这台机器在油装瓶前会自动为油脱气。
We degassed the sample in the lab for ten minutes before testing it.
我们在实验室里先给样品脱气十分钟，然后再进行测试。
If you are degassing the liquid, keep the container slightly open.
如果你正在给液体脱气，请让容器稍微敞开。
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。
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。
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。
Not this
The liquid was degased under low pressure.
Use this
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。
Not this
Degasing the solvent removes dissolved air.
Use this
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。
Not this
The degas of the sample was slow.
Use this
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。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
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。
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。
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。
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。
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。
艺术不是你所看到的，而是你让别人看到的。——埃德加·德加
In art history class, the professor quoted Degas: "Art is not what you see, but what you make others see."
在艺术史课上，教授引用了德加的话：“艺术不是你所看到的，而是你让别人看到的。”
Use degassed naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
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）
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。
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.
Dictionary facts from ECDICT, WIKTIONARY.