throttlen.节流阀；油门；喉咙v.扼喉咙；使窒息throttle apparatus节流装置throttle amplifier推力调节系统放大器throttle capacitor反馈电容器throttleng surface节流面throttle threshold节气门开度throttle mechanism节流机构throttle regulator节流调节器throttleable motor可调发动机throttle rod cottar风门杆开尾销throttle valve body节流阀体