短語詞組短語variable pitch propeller control 可變節(jié)距平行調(diào)節(jié)pitch angle control 槳距角控制pitch attitude control 俯仰姿態(tài)控制pitch -control box 螺距控制機械箱;螺距控制箱pitch rate control system [航]俯仰速度控制系統(tǒng)pitch rate control 俯仰姿態(tài)控制pitch change control rod 變距操縱桿pitch attitude control fins 俯仰操縱舵 返回 pitch control