烷 (wán): alkane
烷 (wán) is a Chinese character meaning “alkane.” Outside the HSK 3.0 syllabus (CLEC 2022), it is composed of 火 (semantic) and 完 (phonetic). It ranks #3109 in character frequency (SUBTLEX-CH corpus).
Etymologically derived, 烷 fire. Its radical form 火 (fire) appears in many related characters such as 火 (huǒ, fire), 烟 (yān, smoke), 烧 (shāo, to burn, to cook).
Definitions
- alkane
Etymology & Origin
Stroke Order
Practice writing 烷 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.
Words & Compounds
Common Compounds
| Word | Pinyin | Meaning |
|---|---|---|
| 甲烷noun | jiǎ wán | methane CH4 |
| 丙烷noun | bǐng wán | propane |
| 丁烷noun | dīng wán | butane |
| 烷烃noun | wán tīng | alkane |
| 烷基noun | wán jī | alkyl |
| 十六烷值 | shí liù wán zhí | cetane number (quality of light diesel fuel, measured by its ignition delay) |
| 三氯甲烷noun | sān lǜ jiǎ wán | chloroform (trichloromethane CHCl3) |
| 二氯甲烷noun | èr lǜ jiǎ wán | dichloromethane |
| 异丁烷noun | yì dīng wán | isobutane |
| 辛烷值noun | xīn wán zhí | octane rating |
| 烷氧基 | wán yǎng jī | alkoxy (chemistry) |
| 烷基苯 | wán jī běn | alkyl benzene |
| 环烷烃noun | huán wán tīng | cycloalkane |
| 烷基苯磺酸钠 | wán jī běn huáng suān nà | sodium dodecylbenzene sulfonate (used as a bubbling agent in detergents) |
| 环氧乙烷noun | huán yǎng yǐ wán | ethylene oxide |
烷 appears in 22 compound words: 23 as the first character, 59 as the last, and 18 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.
Strongest Collocations
Characters that most frequently co-occur with 烷 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.
Idioms & Chengyu (3)
Example Sentences
蜡烛的烷苗在微风中轻轻摇曳。
là zhú de wán miáo zài wēi fēng zhōng qīng qīng yáo 曳 .
The candle's flame flickered gently in the breeze.
后续团队将结合试验数据与积累的工程经验,进一步推进液氧甲烷发动机的研制工作。
hòu xù tuán duì jiāng jié gě shì yàn shǔ jù yǔ jī lěi de gōng chéng jīng yàn , jìn yī bù tuī jìn yè yǎng jiǎ wán fā dòng jī de yán zhì gōng zuò .
Moving forward, the team will combine test data with its accumulated engineering experience to further advance the development of the liquid oxygen/methane engine.
该公司全复用火箭采用了公司自研的 200 吨级全流量液氧甲烷发动机 。
gāi gōng sī quán fù yòng huǒ jiàn cǎi yòng le gōng sī zì yán de 2 0 0 dūn jí quán liú liàng yè yǎng jiǎ wán fā dòng jī .
The company's fully reusable rocket is powered by a 200-metric-ton-class full-flow liquid oxygen/methane engine developed in-house.
这两个星球的大气层确实很相似,都富含甲烷和氮气。
zhè liǎng gè xīng qiú de dà qì céng què shí hěn xiāng sì , dōu fù hán jiǎ wán hé 氮 qì .
The atmospheres of these two planets are indeed very similar; both are rich in methane and nitrogen.
官方表示,跃迁一号是大航跃迁自主研发的液氧甲烷可重复使用运载火箭。
guān fāng biǎo shì , yuè qiān yī hào shì dà háng yuè qiān zì zhǔ yán fā de yè yǎng jiǎ wán kě chóng fù shǐ yòng yùn zài huǒ jiàn .
Officials stated that "Yueqian-1" is a liquid oxygen/methane reusable launch vehicle independently developed by Dahang Yueqian.
验证一:甲烷箱蒙皮密封性能与极限承载 采用铺丝机工艺,严格按铺层设计生产试验样件。
yàn zhèng yī : jiǎ wán xiāng méng pí mì fēng xìng néng yǔ jí xiàn chéng zài cǎi yòng pù sī jī gōng yì , yán gé àn pù céng shè jì shēng chǎn shì yàn yàng jiàn .
Test 1: Sealing Performance and Ultimate Load Capacity of the Methane Tank Skin. Test specimens were produced strictly in accordance with the layup design using a filament winding machine.
Character Family
Semantic Family — Characters sharing the 火 (fire) component
Frequently Asked Questions
What does 烷 (wán) mean in Chinese?
What's the difference between 烷 and 院?
How many strokes does 烷 have?
What is the radical of 烷?
What are the components of 烷?
What are common words containing 烷?
Is 烷 the same in simplified and traditional Chinese?
Practice writing 烷 with real-time feedback
Trace stroke sequences, hear spoken pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.