Descriptive statistics involves tabulating, depicting and describing collections of data.描述统计学涉及对所收集数据的制表 、 制图和描述.Punch card tabulating machine invented by Herman Hollerith.赫尔曼.霍尔瑞斯发明穿孔卡片制表机.As we sit counting pennies, i...
The block is still just a skeleton of girders.这片建筑还只是仅有主梁的骨架.All girders shipped by rail were arranged on a flatbed rail car.由火车装运的所有主梁都安放在平板火车车皮上.The girders are carried on trestles.这些大梁是由支架撑着....
Invertase can exist as active monomer ( light invertase ) or as an aggregated active form ( heavy invertase ).转化酶可以活性单体 ( 轻转化酶 ) 或聚集的活性形式 ( 重转化酶 ) 存在.Invertase plays an important role during the sucrose metabolism in hig...
He has had a keen and lifelong interest in astrological research.他毕生热衷于占星术研究。Commencing in 1474, mathematical, astronomical and astrological works appeared in printed form.从1474年起, 数学 、 天文学和占星术的著作开始印刷出版了.What is your ast...