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- GI-RDA digital gem refractometer helps you identify gems with higher refractive indices that ordinary optical refractometer cannot identify. 該儀器外型美觀(guān)，體積小，操作簡(jiǎn)便，測定范圍大，尤其是解決了普通光學(xué)折射儀不能測定高折射率寶石的難題。
- ON THE PRINCIPLE OF GEM REFRACTOMETER WITH THE AID OF INDICATRIX 應用光率體論述寶石折射率儀測試原理及其應用
- Crystal Optics Interpretation of Gem Refractometer Measuring Refractive Index 寶石折射儀上測定的折射率及晶體光學(xué)解釋
- A gem cut in the form of a narrow rectangle. 狹長(cháng)形寶石被切成細條形的寶石
- My secretary is an absolute gem. 我的秘書(shū)真是個(gè)難能可貴的人。
- A gem that demands a fine setting. 寶石要配精美的戒臺
- The Provincial government granted us the right to gem the whole river. 省政府批準我們從整個(gè)河流中開(kāi)采寶石的權利。
- The transparency and luster of a gem. 水色寶石的透明度及光潔度
- A transparent, green variety of garnet used as a gem. 翠榴石一種透明的、綠色的、用作寶石的石榴石
- Check oxygen concentration by a refractometer. 用折射儀測量一下氧氣的濃度。
- A small natural or artificial gem used as a bearing in a watch. 鉆石小的天然的或人造寶石，用作手表中的軸承
- The price of this gem is expensive -- as much so as astronomical figures. 這個(gè)寶石的價(jià)格十分昂貴－－簡(jiǎn)直是個(gè)天文數字。
- Buying Automatic Refractometer Portable Type. 印度求購折射計。
- He beguiled me into parting with the gem. 他誘騙我把那枚寶石割?lèi)?ài)。
- DO NOT immerse refractometer in water. 不要將折射計浸在水中。
- Mercurial Stone can now be put into Gem Bags. 水銀石現在能放置在寶石包中。
- The portion of a cut gem above the girdle. 寶面露在鑲嵌底板上面的那部分已雕琢過(guò)的寶石
- The little gem is worth two thousand dollars. 這塊小寶石價(jià)值兩千美元。
- A deep red garnet, Mg3Al2Si3O12, used as a gem. 鎂鋁榴石（紅榴石）一種深紅色的石榴石；Mg3Al2Si3O12，用做寶石
- A gem, especially a diamond, cut in this manner. 造型為玫瑰花狀的寶石
