二次统计误差
secondary statistical error
电能量计量计费系统
power energy billing system
telemeter reading system
the System of Measuring and Billing of Power Energy
tele meter reading system
国家核材料统计计量管理系统
state system of accounting for and control of nuclear material
ssac
线性系统统计量
linear systematic statistic
电能量计量计费
power telemeter and settlement system
部分二次二阶矩法
Part Second Order and Second Moment Method
地理信息系统二次开发
secondary development of GIS
第二次量化矩阵
secondary quantization matrix
多样性增量二次判别方法
increment of diversity with quadratic discriminant
二变量统计数列
bivariate statistical series
二次二阶矩
quadratic second ordered moment