扩口的 meaning in English

belled
flared
flaring

Hydraulic braking systems ; brake pipes , flares
液压制动系统.扩口的制动液压管
Phenomena , such as flow field confusion and slagging etc . have occurred in the practical process of cyclone burner for coal - water slurry ( cws ) firing , on this basis a study on aerodynamic field of cws cyclone burners had been carried out through cold state experiments in the laboratory , then the influence of burner ' s structure properties upon the said flow field had been carried out , and expected to find more reasonable structure of the burner was found . in my study the focus is on the affection of cone and cyclone intensity in the condition of infinite and finite fields
本文着重研究现有水煤浆旋流燃烧器的旋流叶片角度，一次风扩口的长度以及角度对旋流燃烧器出口流场的影响，通过流场的比较，以期得到性能较好的旋流燃烧器。考虑到水煤浆燃烧器中心的水煤浆射流对于其空气动力场的影响，本文在实验室冷态实验研究的基础上，模拟水煤浆射流，研究其对燃烧器空气动力场的影响。