hammer diamond 中文意思是什麼
hammer diamond
解釋
錘鍛汽缸-
Practice and analysis of rotary - percussive drilling of impregnated diamond bit with liquid jet hammer
射流式液動錘回轉沖擊孕鑲金剛石鉆頭鉆進的實踐與分析 -
The 603 - carat 120 gram diamond, named after the tiny african mountain kingdom where it was found, went under the hammer at the antwerp diamond center and was sold to the south african diamond corporation, owner of luxury jewellers graff
這顆鉆石的名字源於它的發現地非洲的一座小山。這顆重達603克拉約合120克的鉆石在安特衛普鉆石中心被賣給了奢侈珠寶品牌格拉夫所屬的南非鉆石公司。
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