平均新比旧佳的
new-better-than-used in expectation (NBUE
新比旧差分布
new-worse-than-used (NWU) distribution
GPS观测与常规观测并存混合网的平差
adjustment for a mixed network consisting of both GPS observation and conventional observation
变长度的平均幅度差函数
bath slippers
LVAMDF Length Varied Average Magnitude Difference
抵销回波的平均门坎
mean threshold of objection to echo