opal
opal 英 ['əʊp(ə)l] 美 ['opl]
n. 猫眼石，蛋白石；乳白玻璃
名词复数:opals
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- n. 猫眼石，蛋白石；乳白玻璃
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1. Spirit found the plateau to be surrounded by deposits of opal.
勇气号发现高原上有许多蛋白石的沉积物。
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2. They describe the device, called an inverse opal, in the Journal of the American Chemical Society.
他们所描述的这种仪器被称之为逆蛋白石，刊登在《美国化学协会期刊》中。
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3. After that, a layer of nickel was electrodeposited on the opal, which was then etched away. The porosity of the nickel layer was then increased using electropolishing.
然后，在猫眼石结构表面用电沉积法镀上一层镍膜，之后把猫眼石蚀刻掉，再经过电解抛光，增加这些镍膜空隙度。
- opal (n.) 1590s, from Middle French opalle (16c.), from Latin opalus (Pliny), supposedly from Greek opallios, possibly ultimately from Sanskrit upala-s "gem, precious stone." Used in Middle English in Latin form (late 14c.).
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