蝴蝶阀 meaning in English
butterfly valve
valve， butterfly
Examples
- New sports exhaust system with electronic programmable butterfly - valve control ( available in 2different sound levels ) . this cat - back performance exhaust system was developed on the dyno
新的运动型排气系统由可编程的蝴蝶阀控制（有两档可以调节声音的大小） ，使这个猫背式排气系统的功效发挥到了极致。