在统计学中这个估计值叫组间方差.In statistical language , this estimate is called the between - column variance.两块之间的空隙称为组间间隙.The spaces between the blocks are called interblock gaps.但大剂量组间比较无显著性差异.There was no significant difference be...
A formal contract is signed which is renewable annually.正式签订了每年可续签的合同。Seven million doses of vaccine are annually given to British children.英国孩子每年要接种7百万剂疫苗。El Salvador produces 100,000 tons of refined copper annually.萨尔瓦...