高水平的麦角钙化醇对鸡也是有毒害的.Ergocalciferol at high levels also is toxic to chickness.GB14755 -1993 食品添加剂维生素D2 ( 麦角钙化醇 )Food additive -- Vitamin D 2 ( Ergocalciferol )...
The structure, the principle of work, bauxite floatation of BF - L floatation machine were presented.本文介绍了BF -L 型浮选机的结构特点, 工作原理及铝土矿选矿的适应性研究.The seven leading bauxite exporters formed the International Bauxite Association...
The famous Ritz hotel is up for grabs for £100m.著名的里兹饭店开价1亿英镑供各方竞购。The job is up for grabs. Why don't you apply now?那工作谁都可以争取, 你怎么不现在就申请 呢 ?She grabs a stack of baby photos and thrusts them into my hands.她抓起一沓婴儿照片塞到...