COV
Counter-Obstacle Vehicle
军事名词,指反障碍车辆。
协方差
E[(X-E(X))(Y-E(Y))]称为随机变量X和Y的协方差,记作COV(X,Y),即COV(X,Y)=E[(X-E(X))(Y-E(Y))]。
缩略语 abbr.
1.cerebral oxygen volume 大脑氧容量
2.check-out valve 止回阀
3.coefficient of variation 变异系数
4.communication operation van 通信作业车
5.concentrated oil of vitriol 浓矾油,浓硫酸
6.containing bovine heart cytochrome C oxidase 含牛心细胞色素C氧化酶
7.counter operating voltage 计数器工作电压
8.coverage of the femoral head 股骨头覆盖度
9.crack propagation 裂缝扩展
10.cross-over valve 转换阀,三通阀
11.cut-off value 截断值;判定值
12.cut-off voltage 截止电压
13.cut-out valve 断流阀