nil position of steering gear舵机: steering engine零位: zero position; zero; null舵机: steering engine◇舵机装置 helm gear零位: zero position; zero; [讯] null (position)电舵机: electric steering engine下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:舵机零位，即可在微信中查询翻译
