矿: ore deposit成: accomplish; succeed时代: times; age; era; epoch成时: naritoki东亚矿成因: metallopenesis hydrocarbons and tectonic patterns in eastern asia精矿成球指数: balling index for iron ore concentrates岩矿成份分析: computer analysis of rocks & minerals时代: 1.(时期)times; age; era; epoch 时代潮流 the tendency of the day; the trend of the times; 时代使命感sense of time mission; 划时代的大事 the epoch-making event; 开辟航海新时代open (up) an new era of navigation: 过渡时代 transitional era; 远古时代 ancient [remote] epochs; 文艺复兴是一个文化上取得空前成熟的时代。the renaissance was an epoch of unparalleled cultural achievement.2.(生命中的某个时期)a period in one's life:青年时代youth; 时代性 epochal character; 时代主流 mainstream of the times完成时: when completed【语法】完成时。: perfect tense过去完成时: past perfect tense; pluperfect建成时间: completed year将来完成时: future perfect tense能接完成时: before去完成时: had done; the past perfect tense烧成时间: firing time生成时间: generated time完成时间: finish time完成时态: the perfect tense完成时效期: satisfy the prescriptive period完成时预算: bac未完成时: imperfect tense现在完成时: past perfect tense; present perfect形成时间: formation time形成时滞: formation time lag