平均上半球面烛光
mean upper hemispherical candle power
平均地表面上天线高度
antenna height above average terrain
平截面假设
hypothesis of plain section
plane section assumption
平截面假定
plane-section assumption
planesection assumption
assumption of plane cross-section
assumption of plane cross section
Planing cross-section assumption
plane cross-section assumption
Bernoulli’s principle
plane section assumption
the bernoulli hypothesis of plane strain distribution
assumption of plane section
平滑铜表面上的粘结
adhesiveness on flat copper surface