| 单词 | 细粉末 |
| 释义 | 〔pounce〕A fine powder formerly used to smooth and finish writing paper and soak up ink.吸墨粉：原用作光滑和完成写字纸的细粉末且可吸墨〔alcohol〕Theal- in alcohol may alert some readers to the fact that this is a word of Arabic descent, as is the case withalgebra and alkali—al being the Arabic definite article corresponding to the in English. The origin of-cohol is less obvious, however. Its Arabic ancestor waskuḥl, a fine powder most often made from antimony and used by women to darken their eyelids;in fact,kuḥl has given us the word kohl for such a preparation. Arabic chemists came to useal-kuḥl to mean "any fine powder produced in a number of ways, including the process of heating a substance to a gaseous state and then recooling it.” The English wordalcohol, derived through Medieval Latin from Arabic, is first recorded in 1543 in this sense. Arabic chemists also usedal-kuḥl to refer to other substances such as essences that were obtained by distillation, a sense first found for Englishalcohol in 1672. One of these distilled essences, known as "alcohol of wine,” is the constituent of fermented liquors that causes intoxication.This essence took over the termalcohol for itself, whence it has come to refer to the liquor that contains this essence as well as to a class of chemical compounds such as methanol.al- 包含于 alcohol 中的用法可能会使读者注意到这个词来源于阿拉伯语， 就如同algerbra 和 alkali--al 作为与英语中 the 相对应的阿拉伯语定冠词。 不过-cohol 的词源就不那么明显了。 它在阿拉伯语中写作kuhl， 是一种通常用锑精研而成的粉末，妇女们用它来涂黑眼睑；实际上我们由kuhl 这个词已可以得出作为备用的 kohl 一词。 阿拉伯的化学家们开始把al-kuhl 一词用来指“通过一系列方法而得到的细粉末， 这些方法包括将一种物质加热至气化状态再使之冷却的过程。”英语中的alcohol 这个词，是由该阿拉伯词汇入中世纪拉丁语之后发展而来的，用作这个意义的记录最早出现于1543年。 阿拉伯化学家也用al-kuhl 这个词指如通过蒸馏而得到的精华的其它物质， 英语词汇alcohol 的这一含义最早出现于1672年。 其中有一种被称为“酒精”的蒸馏产物是可以醉人的发酵液体的组成部分。alchohol 成了专指这一物质的词汇， 从此以后它也指包含该物质的液体及甲醇等化合物〔pounce〕A fine powder, such as pulverized charcoal, dusted over a stencil to transfer a design to an underlying surface.印花粉：撒于镂花模板上以便在其表面上印出图案的细粉末，如磨碎的木炭粉〔triturate〕To rub, crush, grind, or pound into fine particles or a powder; pulverize.研磨捣碎：搓擦、磨细、捣烂，使…研磨成细粉末，使成粉末状〔cement〕A building material made by grinding calcined limestone and clay to a fine powder, which can be mixed with water and poured to set as a solid mass or used as an ingredient in making mortar or concrete.水泥：通过把烧石灰和粘土研磨成细粉末做成的一种建筑用料，掺入水浇灌凝固成块或用来作制成灰浆或混凝土的成分 |
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