hand steering gear meaning in English

人工操舵装置
手操舵装置
手动操舵装置
手动舵机
手动转向装置

The characters of sdy oscillationing oil cylinder type hydraulic steering gear are : the construction is simple and reasonable , operation is flexible and steady , maintenance is convenient and leaktightening . we also assemble two suits control devices ( hand steering gear and emergency steering gear ) and oil pump series , the function of which is safe and reliable
200摆缸式液压舵机具有结构简单合理，操作灵活、工作平稳、安装维护便捷和无泄漏等特点，并备用两套操纵装置（手操舵和应急操舵）及油泵，性能安全可靠。