1590s, "type of shellfish that yields mother-of-pearl," from Middle French nacre (14c.), from Italian naccaro (now nacchera), possibly from Arabic naqur "hunting horn" (from nakara "to hollow out"), in reference to the shape of the mollusk shell. Meaning "mother-of-pearl" is from 1718.
雙語(yǔ)例句
1. Objective To study the extractive technique of amino acid in nacre.
目的研究珍珠母中氨基酸的提取工藝.
來(lái)自互聯(lián)網(wǎng)
2. Recent advances in nacre used as bone implant are reviewed in this paper.
摘要珍珠層是一種天然的納米生物陶瓷材料,一直是生物礦物材料學(xué)者研究的焦點(diǎn).
來(lái)自互聯(lián)網(wǎng)
3. I am that grain of salt, and I am also the nacre tears that the oyster cried.
我是那粒沙, 也是牡蠣哭泣時(shí)流出的珍珠淚.
來(lái)自互聯(lián)網(wǎng)
4. The oyster covers the piece of shell with a pearly substance known as nacre.
牡蠣分泌一種叫做“珠母貝”的珍珠狀物質(zhì)覆蓋那一小片貝殼.
來(lái)自互聯(lián)網(wǎng)
5. It is likely that nacre will become a good candidate for bone graft substitution in future.