The “jet-type noise” of gas and ash rushing out of fumaroles was heard several kilometers away.
蒸汽和火山灰从火山喷气口涌出时发出飞机发动机样的（巨大）噪音，人们在数公里之外都能听见。
As a key equipment of Hailler indirect air-cooling system, the performance of jet-type condenser is directly related to the performance of the whole air-cooling unit.
作为海勒式间接空冷系统的关键设备，喷射式凝汽器的性能与整个空冷机组的性能直接相关。
One is the geared turbofan (GTF), a new type of jet engine from Pratt &Whitney, part of America’s United Technologies group.
一款是来自普惠公司的新型喷气发动机GTF，普惠隶属于美国联合技术公司。
应用推荐