短語詞組短語blade -element theory 葉片基元理論propeller blade element theory 螺旋槳葉素理論blade element analysis theory 葉元法momentum -blade element theory 動(dòng)量葉素理論the momentum -blade element theory 動(dòng)量Blade Element -Momentum Theory 動(dòng)量 返回 blade element theory