小宝贝真紧校园强h_二区免费视频_91免费视_九一精品一区_69热国产视频_在线免费看毛片

单词
paraffin
英 ['p?r?f?n] 美['p?r?f?n]
基本信息
  • n. 石蜡;[有化] 链烷烃;硬石蜡
  • vt. 用石蜡处理;涂石蜡于…
TEM8畅通词汇

词态变化

复数:?paraffins;

助记提示

1. *pau- "few, little; small, young" => paraffin, few, poor, puerility, paucity, parvi-, foal, Paul, poco, pullet, pony, pullulate, pusillanimous, pauper, poverty, (pais (genitive paidos) "child" => ped- "child"), puerile.
2. *pau- "few, little; small, young" => few, poor, puer "child", pauper, foal, Paul, ped- "child".
3. So called because paraffin is chemically not closely related to other substances.
4. 蜡烛就是由石蜡制成的。
5. 石蜡主要是从石油中提炼出来的,故名石蜡。

中文词源

paraffin 石蜡,煤油

来自拉丁语parum,一点点,不多,来自PIE*pau,少的,词源同few,poor.-affin,相似,词源同affinity,finite.来自该物质发明者19世纪德国化学家Karl von Reichenbach根据拉丁语创造出来的一个词,因石蜡与蜂蜡有一点相似而得名,后也用于指煤油。

英文词源

paraffin
paraffin: [19] The term paraffin was coined in German around 1830 by the chemist Reichenbach. It was formed from Latin parum ‘little’ and affinis ‘related’ (source of English affinity), an allusion to the fact that paraffin is not closely related chemically to any other substance. The word is first recorded in English in 1838.
=> affinity, fine
paraffin (n.)
1838, from German Paraffin, coined c. 1830 by German chemist Karl von Reichenbach (1788-1869), who first obtained it as a waxy substance from wood tar, irregularly from Latin parum "not very, too little," probably related to parvus "little, small" (see parvi-) + affinis "associated with" (see affinity).

So called because paraffin is chemically not closely related to other substances. The liquid form (originally parafin oil) Reichenbach called eupion, but this was the standard meaning of paraffin in English by 1860.

双语例句

1. The fire blazed up when I added paraffin.
我加了一些煤油,火就燃烧起来了.

来自《简明英汉词典》

2. He took the paraffin stove on a picnic and the ruddy thing wouldn't work.
他带了那个煤油炉去野餐,但是那个该死的东西根本用不了。

来自柯林斯例句

3. Paraffin waxes are normally marketed on the basis of a melting - point test.
石腊一般按其熔点不同在市场上分类出售.

来自辞典例句

4. Paraffin has the property of dissolving grease.
石蜡具有溶解油脂的特性.

来自辞典例句

5. Paraffin , however, is not a good phlegmatizing agent.
石蜡并不是良好的钝感剂.

来自辞典例句

paraffin相关单词
主站蜘蛛池模板: 免费黄色小视频 | 一区二区三区不卡免费视频97 | 国产亚洲另类无码专区 | 波多野结衣美乳人妻hd电影欧美 | 欧美色香蕉 | 成年女人视频在线观看免费 | 欧美理论电影在线 | 久久99精品一久久久久久 | 黑人巨大白妞出浆 | 污片在线看 | 亚洲免费三区 | www.日本在线播放 | 无码人妻精品一区二区三区蜜桃 | 第九色区 | 人妻人人澡人人添人人爽 | 精品一区二区三区免费视频 | 99视频在线观看视频 | jizz日本zzz日本护士水多 | 日韩视频中文字幕精品偷拍 | 成人国产精品免费视频不卡 | 四虎免费影院ww4164h | 2021国产麻豆剧传媒精品 | 18禁黄无码免费网站高潮 | 一a一级片 | 日韩亚洲欧美综合一区二区三区 | 性做久久久久久久免费看 | 国产精品视频九九九 | 国产精品亚洲欧美大片在线观看 | 你懂的在线网址 | 国产在线观看一区精品 | 亚洲精品动漫免费二区 | 亚洲一区二区三区香蕉 | 深夜偷偷看视频在线观看 | 国产青青视频 | 性做久久久久久久久 | 乱子轮熟睡1区 | 国产福利精品一区二区 | 国内外成人免费在线视频 | 日本三级理论久久人妻电影 | 精国产品一区二区三区a片 精精国产www视频在线观看免费 | 午夜专区 |