This is good news for the mine's 1,000 or so employees and for the town, which has depended on the diamond business since Sir Thomas Cullinan discovered a prospect there in 1898 that contained kimberlite, a rock that can be rich in diamonds.

這宗交易對(duì)于該鉆礦的約1000名雇員和小鎮(zhèn)都是好消息。

From 1945, the Soviet Union I in the Siberian Platform for diamond prospecting survey, after 10 years of work until 1954, along daldyn River with pyrope as a symbol of placer minerals recourse, discovered the first kimberlite Yan Bin -"Flash"...

從1945年開始在线观看亚洲精品国产AV，蘇朕在西伯利亞地臺(tái)進(jìn)行金剛石普查找礦，經(jīng)過(guò)10年的工作，直到1954年沿達(dá)爾登河用鎂鋁榴石作為標(biāo)志礦物進(jìn)行重砂追索黄色首页入口在线观看，才發(fā)現(xiàn)第一個(gè)金伯利巖巖筒-"閃光"。免费的A片视频在线观看漫画。亚洲美女黄视视频永久久久久。

The facts that there is coexisting relationship among petroleum, metal and diamond deposits, and hydrocarbon and bitumen occur in the inclusion and kimberlite indicate that petroleum even took part in the hydrothermalism.

石油與金屬及金剛石礦床共生，包裹體及金伯利巖中所含碳?xì)浠衔锖蜑r青也表明欧美一级欧美一级在线播电影，石油參與了熱液活動(dòng)久久人妻精品99。

Www.ebigear.com 更好的英語(yǔ)互動(dòng)平臺(tái)(1) This is good news for the mine's 1,000 or so employees and for the town, which has depended on the diamond business since Sir Thomas Cullinan discovered a prospect there in 1898 that contained kimberlite, a rock that can be rich in diamonds.

這對(duì)于這個(gè)礦的1000名左右的雇工以及這個(gè)小鎮(zhèn)來(lái)說(shuō)是個(gè)好消息，這個(gè)小鎮(zhèn)從1898 年Thomas Cullinan爵士發(fā)現(xiàn)該礦含有金伯利巖(可能富含關(guān)關(guān)的一種巖關(guān))后国厂狠天一级毛片，就一直依賴關(guān)關(guān)生意存活亚洲欧美一级A片在线播放。

Natural diamonds often exist in the Kimberlite pipes of the mantle, where often contain the inorganic elements--- sulfur. So the inclusions of natural diamonds are always carbonate minerals and sulfide. Undoubtedly, the study of the additive sulfur action in the course of synthesizing diamond will further our understanding the reason of natural germ formation.

天然金剛石多產(chǎn)生于地殼中的金伯利巖和鉀鎂煌斑巖美女毛片永久免费观看App，該巖層中含有非金屬元素硫，天然金剛石中的包裹體通常為硅酸鹽礦物和硫化物[41]在线观看av的网址，因此研究添加劑硫在合成金剛石中的影響是認(rèn)識(shí)天然金剛石成因的重要方面欧美一级做一级a做视频。

Her diamond necklace must have cost a king's ransom.

她的鉆石項(xiàng)鏈一定很貴。收藏

Back in his home town of Vitebsk by 1914, Cha gall joined the Knave of Diamond group.

1914年他回到家鄉(xiāng)維捷布斯克国产热线99视频在线，參加了方塊杰克小組AV免费在线观看福利网址。你知道它的英文嗎？

Automatic lathe; Centerless Grinder; Centerless Grinder feeding machine; Knurling feed; bar tail feeding; Centerless Grinder knife plate Roundness Instrument; magnetic separator; missile launches wheel; Diamond washing Tutcheria spectabilis; Carbide; Chuck

臺(tái)灣自動(dòng)車床日韩免费网址；高精度無(wú)心磨床日批网站视频；無(wú)心磨床送料機(jī)；滾花機(jī)送料機(jī)2017年国产一级黄片；棒材尾料送料機(jī)国产欧美日韩精品一卡；無(wú)心磨床刀板；圓度儀18人人黄色视频在线观看；磁性分分離器欧美人群三人交视频免费；導(dǎo)輪、砂輪92精品视频；金剛石洗石筆日韩人妻无码精品久久中文字幕；硬質(zhì)合金；夾頭

Mainly described the relation between diamond cutter on the knifepoint radius, arc cutting edge blunt round radius, feed rate and surface roughness.

對(duì)金剛石刀具的刀尖圓弧半徑国产三级片尤物视频、圓弧切削刃鈍圓半徑国产黄色片视频手机免费观看、進(jìn)給量與表面粗糙度之間的關(guān)系進(jìn)行描述。

In LMO's warm-hearted and easy-going fashion world, the familiar and friendly spread collar, round knit, twisted stitch in our memory bring us back to that impressive age; Fashioned computerized knit without broken-line, bright and brilliant, decorated with pure and extraordinary Austria Swaeovski crystal diamond, revealing its noble and flamboyant.

在LMO溫情好大好爽好湿美女在线视频、隨和的溫馨時(shí)尚世界日韩一级一区，記憶中的小翻領(lǐng)、元寶針H无码动费视频在线观看、扭麻花91日韩作爱视频免费观看?，熟悉而親切，仿佛又把我們拉回到那個(gè)印象年代欧美老熟妇AAAAAA农民；時(shí)尚的電腦無(wú)虛線提花精品一区综合、璀璨光耀、純凈非凡的奧地利施華洛世奇水鉆裝綴国产xxxx在线播放，華貴艷麗老女老肥熟国产在线视频。