circulation control marine wing
control gear
调整装置
操作机构
操纵装置
控制传动装置
控制设备
控制机构
自动调整仪
combined directional control
electric hydraulic controlled directional control valve
accelerator control lever
auxiliary control lever
engine speed control lever
hydraulic control lever
marine air [= marine air mass
horizontal directional drilling horizontal directional drilling technology
control domain of dynamic control