有源滤波器假设
alternative hypothesis───[数]择一假设;[数]备择假设
active filters───有源滤波器
alternative hypotheses───[数]择一假设;[数]备择假设
nebular hypothesis───星云假说
test a hypothesis───检验假设
Whorfian hypothesis───沃尔夫假说;沃夫假设
active filter───[电子]有源滤波器
continuum hypothesis───[数]连续统假设
nebular hypotheses───星云假说