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...
Serb leaders have told them to ignore Kosovo's independence.塞尔维亚领导人告诉他们不要在意科索沃的独立.If Kosovo can be partitioned, why not Macedonia and Bosnia?如果科索沃可以分割, 马其顿和波斯尼亚为什么不可以 呢 ?An advisory opinion cannot in itself be deter...
Bunkering: To fill a ship's Bunker with coal or oil.装入燃料: 往船的燃料仓中添加装煤或油.In the electric light of bunker much remained to be done.在地下避弹室的灯光下,还有许多事情要做.Frost holed a bunker shot from 50 feet to snatch the title by one ...
manganese peroxide二氧化锰The sample was molten and decomposed with sodium peroxide , leached and acidified hot water and - volumed.试样以过氧化钠熔融分解,热水浸取、酸化,定容.Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化...
若把许许多多这样的电池连成阵列，就能提供可以利用的电能量。An interconnected array of many such cells will deliver amounts of useful electricity.为什么阵列技术正好适用于数字式功能部件,是很清楚的.Why array technology is directly applicable to digital functions is clear.高存贮密...