LA50, lethal area 50
面声源
area source of sound【声】
暂无补充释义。
相关词条
green area, green space
relief area
patch area
basal area factor; 又称“断面积系数”。
A，peak area area
log pile area, stacking area
cross-sectional area of fuel spray nozzle
area source of sound【声】
暂无补充释义。
LA50, lethal area 50
green area, green space
relief area
patch area
basal area factor; 又称“断面积系数”。
A，peak area area
log pile area, stacking area
cross-sectional area of fuel spray nozzle