The synthesis of gem diamond crystal with multi-seed under HPHT;
Ⅰb型宝石级金刚石单晶的多晶种合成
Ib gem diamond crystals wewe synthesized by temperature gradient method(TGM) under high temperature and high pressure(HPHT),with NiMnCo alloy as solvent metal,{100} and {111} surfaces as the growth facets,the surface characters of the samples were discussed and analyzed in this paper.
本文利用高温高压温度梯度法,N iMnCo合金作为触媒,分别采用籽晶{100}和{111}作为生长面,合成了Ib型宝石级金刚石单晶,对其表面特征进行了分析和讨论。
Effects of Al additive on the growth of type IIa gem diamonds;
铝对生长Ⅱa型宝石级金刚石的影响
A experiment for synthesizing high-quality Ⅱb type gem grade diamonds by means of temperature gradient method in China-made cubic hinge press was finished.
实验在国产六面顶压机上利用温度梯度法合成优质Ⅱb型宝石级金刚石。
THE FUNCTION AND EFFECT OF CATALYST IN SYNTHESIZING GEM DIAMOND PROCESS
触媒在合成宝石级金刚石中的作用及影响
Growth of Type IB Diamond Crystal with Multi-seed under High Temperature and High Pressure by Temperature Gradient;
高温高压下IB型宝石级金刚石的多晶种法合成
Growth of Large High-quality Type Ⅱa Diamond Crystals and Research of the Mechanism under HPHT
优质Ⅱa型宝石级金刚石的高温高压合成及机理研究
The Experimental and Theoretical Study about Synthesis of Diamond Single Crystal under HPHT
高温高压生长宝石级金刚石单晶的实验与理论研究
Study on Surface Characters of Gem Diamond Crystals Grown by HPHT
高温高压生长宝石级金刚石单晶的表面特征研究
Ruby is less valuable than diamond .
红宝石不如金刚石贵重。
So it is important to study synthetic large diamond.
所以研究宝石级人造Ⅱ型金刚石是非常重要的。
Diamonds and rubies are gems.
金刚石和红宝石都是宝石。
A diamond is a precious stone.
金刚钻是一种宝石。
The diamond abrasive tool has been widely used in the gem processing factory.
金刚石磨具已广泛用于宝石加工业。
A great collector of gems and diamonds---you ought to see his fingers ...."
他收藏的宝石金刚钻！ 只看他两只手——”
Now let us consider crystals such as diamond or sopphire.
现在让我们考虑象金刚石和蓝宝石这样的晶体。
The variety of boule includes ruby, starlight ruby, sapphire, beautiful sapphire and starlight sapphire.
刚玉的种类包括（红宝石、星光红宝石、蓝宝石、艳色蓝宝石、星光蓝宝石）。
Any of various yellow gemstones, especially a yellow variety of sapphire or corundum.
黄宝石一种黄色的宝石，特别是黄色的刚玉宝石
Three Levels of Transaction Circles in Exchange of Monetary Gifts at Stone City Village of Lijiang;
丽江宝山石头城村的礼金“三级交往圈”
The crowd moved to and fro in the rooms like an ebb and flow of turquoises, rubies, emeralds, opals, and diamonds.
人群拥来拥去，象是一道由蓝宝石、红宝石、翡翠、猫眼石和金刚石组成的涡流一样。
A purple variety of corundum used as a gemstone.
紫蓝色宝石一种紫色刚玉，用作宝石
"The second, a ruby, a sapphire, and an onyx;"
第二行是绿宝石，蓝宝石，金钢石，