[空]气动力粗糙面
aerodynamically rough surface
[空]气动力平滑面
aerodynamically smooth surface
2D气动数字阀
2-Dimensional pneumatic digital servo valve
2D气动数字伺服阀
2D pneumatic digital servo valve
CAWS600-R T自动气象站
CAWS600-R T automatic weather station
CAWS600型自动气象站
automatic weather station CAWS600
DYYZⅡ自动气象站
DYYZ II automatic weather station