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单词 potch
释义

potch /pɔtʃ/

英汉-汉英词典
n. 〈主澳〉〈俚〉(镶嵌贵重蛋白石用的)劣质蛋白石
词组 | 习惯用语
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  • POTS abbr. 光学地面模拟器(Photo-Optical Terrain Simulator);简易老式电话服务(Plain Old Telephone Service)
potch n. 劣质蛋白石;漂洗;巴掌; vt. 打巴掌;

网络短语:
Cloth potch 布匹漂洗
potch opal 蛋白石
原声例句
双语版 TED-Ed 演讲精选

The vast majority of the time, this structure is haphazard, resulting in common, or potch, opals with unremarkable exteriors.

产生出普通无彩的蛋白石,只有平凡的外观。

中文百科

蛋白石 Opal

(重定向自Potch)
 Esferas de dióxido de silicio formadas, regularmente, en capas muy unidas. (Diagrama)
Cristal multicolor en bruto de ópalo de Coober Pedy, sur de Australia

蛋白石,又名闪山云,英语音译为“Opal”或“澳宝”,宝石学名称为欧珀,是二氧化硅的水合物,成分为SiO2·n H2O,是非晶质结构,所以无一定的外形,断口为贝壳状,主要是二氧化硅的胶体沉淀形成的,如果沉淀在生物遗骸中,则形成“树化玉”。

蛋白石的含水量并不固定,一般在3%-10%左右,但也有高达20%的;硬度为5-5.5;比重为1.9-2.5;一般为蛋白色,如果有其他原子混入,可以形成各种颜色,例如含铁、钙、镁、铜等,蛋白石一般具有玻璃光泽或蜡状光泽,如果出现色彩光泽随角度变化,则是贵重的宝石,否则只是装饰性石材。

英语百科

Opal 蛋白石

(重定向自Potch)
Precious opal consists of spheres of silicon dioxide molecules arranged in regular, closely packed planes. (Idealized diagram)
Multicolor rough crystal opal from Coober Pedy, South Australia, expressing nearly every color of the visible spectrum
Brightness of the fire in opal ranges on a scale of 1 to 5 (5 being the brightest)[10]

Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Opal is the national gemstone of Australia.

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更新时间:2025/6/18 18:07:40