Wing feather with copper-containing pigment, flight and display, Courtesy Peter Mullen, Ph. D.
带有铜类色素的翅羽，飞行和展示用，彼得·穆伦博士惠赠。
Objective To observe the effect of supplementation of calcium, vitamin d, magnesium, zinc, and copper on bone mineral density and bone strength in rats.
目的观察在补充钙、维生素d的同时补充镁、锌、铜对大鼠骨密度和骨强度的影响。
The 3-D numerical prediction proved that the copper pin fin structures have 24%-34% higher convection heat transfer coefficients with 10%-16% pressure drop increase.
在三维空间上的对流换热模拟表明，铜制的针肋结构的换热系数要高出百叶窗翅片24％-34％，而流阻仅高出10％-16％。
The copper ore leaching had been put into practice with a history of about 1000 years and was once well-developed in Soong Dynasty (960-1279 A. D. ) .
我国铜矿石浸出的生产实践距今已有约一千年的历史，并曾在宋朝（公元960—1279年）时一度十分发达。
According to Sims. R. d. Formulation, Copper rolling force is calculated and the strength and life service of the parts used for No. 1 Copper rolling mill is examined.
根据西姆斯公式计算连轧机轧制力，并在此基础上核算1号轧机零件强度和寿命。
Zhejiang Huayou Cobalt Co. , Ltd. is a Hi-tech Enterprise, professional in the R&D and manufacturing of Cobalt, Copper and Nickel Chemicals and new materials.
浙江华友钴业股份有限公司是专业从事钴、铜、镍有色金属化学品及新材料研发制造的高新技术企业。
Zhejiang Huayou Cobalt Co. , Ltd. is a Hi-tech Enterprise, professional in the R&D and manufacturing of Cobalt, Copper and Nickel Chemicals and new materials.
浙江华友钴业股份有限公司是专业从事钴、铜、镍有色金属化学品及新材料研发制造的高新技术企业。
应用推荐