Kaolinite,dickite and nacrite are polytypes of the kaolinite family,in which kaolinite is quite commmon while nacrite is very rare in nature.
珍珠陶石、地开石和高岭石是高岭石亚族矿物的三种多型。
An intercalation complex of hydrated nacrite is formed by initial nacrite intercalated withhydrazine, and then replaced with water tholecules by washing with water.
应用联氨，使珍珠陶石形成其夹层物，然后再用水洗获得水合珍珠陶石。
It is more or less difficult to detect minor compoitions of dickite and nacrite in a mix-ture of kaolins.
本文报道了用氢氟酸溶蚀的方法，从天然高岭土中分离和富集地开石或珍珠陶石。
Effects of fertilization on the yield and physiologic character of Pearl-Guava;
施肥对珍珠番石榴生理性状和产量的影响
Studies on Regulating the Fruit Maturation of Pearl-Guava;
珍珠番石榴产期调节技术研究
Effects of crown retraction on the shoot growth of pearl-guava
回缩树冠对珍珠番石榴枝梢生长的影响
The woman was dressed in purple and scarlet, and was glittering with gold, precious stones and pearls.
4那女人穿着紫色和朱红色的衣服，用金子宝石珍珠为妆饰。
antique jewellery (excl. pearls and precious or semiprecious stones
仿古珠宝（不包括珍珠和宝石或半宝石）
Inside, there are boxes of pearls and nice jewels.
里头堆着一盒盒珍珠和珍贵的宝石。
a precious or semiprecious stone incorporated into a piece of jewelry.
由一些珍贵的或准珍贵的宝石组成的一件珠宝。
A pearl or mineral that has been cut and polished for use as an ornament.
宝石，珍珠珍珠或矿石，已被切割或抛光而作为装饰品
There is gold and a store of corals: but the lips of knowledge are a jewel of great price.
有金子，和许多珍珠。(或作红宝石)惟有知识的嘴，乃为贵重的珍宝。
Hansel and Gretel show their father the pearls and jewels.
汉瑟和葛丽特把珍珠和宝石拿给爸爸看，
comb, toilet (excl. those of precious metal and those incorporating pearls or precious stones)
化妆用梳（不包括贵金属制或装有珍珠或宝石者）
hair-slide (excl. those of precious metal and those incorporating)
角质发夹（不包括贵金属的或装有珍珠或宝石）
comb for hair (excl. those of precious metal and those incorporating pearls or precious stones)
发梳（不包括贵金属制或装有珍珠或宝石者）
comb ,dress (ecxl. those of precious metal and those incorporating pearls or precious stones)
衣服梳（不包括贵金属的或装有珍珠或宝石者）
A variety of feldspar valued as a gem for its pearly translucence.
月长石一种因为具有珍珠半透明的光泽而被视为宝石的长石
"She is of more value than jewels, and nothing for which you may have a desire is fair in comparison with her."
比珍珠(或作红宝石)宝贵。你一切所喜爱的，都不足与比较。
That pearl is above price.
那颗珍珠是无价之宝。
Ornaments, such as bracelets, necklaces, or rings, made of precious metals set with gems or imitation gems.
珠宝由嵌有宝石或仿制宝石的珍贵金属制成的装饰品，如手镯、项链或戒指
Some of these experts include the opal as a fifth precious stone while others consider the pearl in this class.
其中有些专家把猫眼石列为第五种宝石，而有些专家则认为珍珠才是第五种宝石。
spherical button [excl. those of precious metal and those incor porating pearls or precious stones]
球面的纽扣[不包括贵金属制或装有珍珠或宝石的]
Hansel fills his pockets with pearls, and Gretel puts many jewels into her bonnet.
汉瑟把他的口袋塞满了珍珠，葛丽特则把许多宝石放在她的帽子里，