These stones tend to go in and out of fashion and, unlike most of the other fancy coloured diamonds which are transparent, these stones are usually opaque, yet they still display the wonderful 'adamantine' luster almost unique to diamond.

這些石塊傾向于去出時(shí)尚亚洲一级av无码中文毛片，不象其他大多數(shù)花式彩色鉆石是透明的，這些石頭通常不透明女老师高潮喷水，但他們?nèi)员憩F(xiàn)出美妙的視線'光彩幾乎獨(dú)有的鉆石黄色A片免费观看黄色网站。

A diamond solitaire pendant is a classic gift that will never go out of style.

而非鉆石吊墜是一個(gè)典型的禮物是不會(huì)退的風(fēng)格。

In 15th Century, there were eight major diamond centers in India. Golconda is the most famous one.

十五世紀(jì)AAAAAAA一级婬片毛片，印度的鉆石生產(chǎn)逐步形成了七另类女同一区二区三区、八個(gè)礦區(qū)，其中最著名的是印度南部古都戈?duì)柨颠_(dá)老司免费看黄色三级片。

To illustrate his concepts, he scoured the world for examples that remain just as vivid today: from the diamond mines of Golconda to the price of Chinese silver in Peru; from the fisheries of Holland to the plight of Irish prostitutes in London.

為了說(shuō)明他的觀點(diǎn)国产精品青草国产一区二区，他遍尋實(shí)例，這些實(shí)例在今天看來(lái)還是非常生動(dòng)国产导航在线看欧美。從Golconda 的鉆石礦到Peru中國(guó)銀器的價(jià)格欧美性交v；從Holland的捕魚業(yè)到London Irish貧困的妓女。

My company produces a variety of high-end fashion cufflinks, such as metal cufflinks, diamond cufflinks artificial increases, Opal Cufflink, shell cufflinks, rhodium cufflinks Ma, Gradienter cufflinks, compass cufflinks, cufflinks mahjong, glass cufflinks and so on, reasonable price, prompt delivery, quality assurance.

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Ex:Color is one of the most important factors in the grading of a diamond .

顏色是判定鉆石等級(jí)的一個(gè)重要項(xiàng)目亚洲国产毛片在线看。

This paper reports the effect of pretreatment of graphite on the diamond growth.

本文介紹了對(duì)合成金剛石用石墨片進(jìn)行預(yù)處理的方法。

In this model,the graphite transports electrons to the diamond surface.

這個(gè)模型中的兩個(gè)關(guān)鍵參數(shù)是金剛石的晶粒尺寸和石墨的含量美女午夜大片免费视频。

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