查询词典 opal

Of these structures, the fcc structure, owing to its high symmetry, is only fit for close-packed lattice prepared by inverted-opal method.

三种结构中，fcc结构由于高对称性导致的能级简并，只适用于密堆积排列的反蛋白石结构；diamond结构非常容易产生高带隙率的完全禁带，并且可以通过调节多项参数得到所需的完全禁带；woodpile结构参数调节范围比较宽，为实验制备带来方便。

One level below these are the rare collector's gems like alexandrite, demantoid garnet, Paraiba tourmaline, black opal, pink topaz, jadeite, chrysoberyl cat's eye, fancy sapphire and South Sea cultured pearls.

其中一层是难得珍藏宝石一样翠绿宝石、石榴石demantoid、帕拉伊巴电气石、黑色蛋白石、黄玉粉红、翡翠、宝石猫眼、蓝宝石、花式南海养殖珍珠。

They are turquoise, because it can discolour; opal, which is also prone to discolouration and can crack; and pearls, as they're very porous and, once damaged, lose their lustre.

他们是绿松石，因为它可以变色；蛋白石，也是容易变色，可以打；而珍珠，由于他们非常多孔，一旦受损，失去光泽。

Modern day discovery of the fire opal occurred in 1835 in the Mexican highlands.

现代火蛋白石一天发生在1835年发现在墨西哥高原。

There are also doublet opals which are more valuable than triplets because of more opal content.

还有双峰蛋白石是三胞胎以上更有价值，因为更多的蛋白石的内容。

Dealers cure fire opal by drying it before cutting to make sure that any instability can be eliminated.

经销商治愈火蛋白石切割前的干燥，以确保任何可以消除不稳定。

Mexico is the primary home to the red colored fire opal.

墨西哥是主要的家里的火红色的蛋白石。

Brazil has recently started producing their own fire opal with ranges in yellow to orange hues.

巴西近期开始生产自己与自己的火蛋白石范围为橙黄色的色彩。

Mexico still remains a leading producer of the fire opal.

墨西哥仍是火灾的蛋白石领先生产商。

Because it is light as well as bright, fire opal is especially good for earrings, where even small sizes have a big punch of color.

因为它是轻，以及光明，尤其是对火蛋白石耳环、那里有一个更小尺寸的彩色大冲床。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。