The flow resistance of the tunnel and the boosting capacity of jet fan in the tunnel are the foundation to calculate the tunnel ventilation, they are the first ascertained parameters.
隧道的流动阻力和风机在隧道内的升压力是隧道通风计算的基础，是进行通风计算首先要确定的参数。
One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
Whereas jet engines were long and slim in the 1960s, today they have a vast opening at the front containing a giant fan.
60年代的喷气式飞机引擎又长又细，而今天它们的前端有了一个硕大的开口，巨大的风扇包含其中。
The tapered windscreen flow field of the fan is composed of the outer ring turbulent jet and the inner sink, which tightly closes gas and dust to ensure the safety production.
风扇环形外腔产生的正压湍流射流在内腔负压汇流作用下形成锥形风幕流场，将处于流场范围内的气体及粉尘严密封闭起来，使安全生产得到保障。
As an important component of the ductless inductive ventilation system, the jet inducted fan is used more and more widely in ventilation system of underground garage.
射流诱导风机作为实现射流诱导通风方式的主要产品之一，在地下车库等通风系统中得到广泛的应用。
When a jet engine is running, a fan at the front draws in air, which is then compressed and burned with fuel to produce hot, rapidly expanding gases which roar out of the back.
喷气发动机运转时，前端的风扇吸入空气； 空气经过压缩后与燃油一道被点燃；高温的燃气迅速膨胀，咆哮着冲出尾喷管。
The results show that the performance of optimized fan is improved by lowering the energy loss which caused by the secondary flow vortex, the volute tongue, the wake-jet and the angle of attack.
研究结果表明：通过优化有效降低了因二次流漩涡、风机蜗舌结构、尾流-射流和正冲角等造成的能量损失，提高了离心通风机性能。
I'm a Kung Fu fan, so I watched many action movies. So I like Jet li, Jackie Chan. Jackie Chan's son is my friend.
我非常喜欢中国功夫，所以我看过很多功夫影片，也很喜欢李连杰和成龙，而且成龙的儿子还是我的好朋友。
I'm a Kung Fu fan, so I watched many action movies. So I like Jet li, Jackie Chan. Jackie Chan's son is my friend.
我非常喜欢中国功夫，所以我看过很多功夫影片，也很喜欢李连杰和成龙，而且成龙的儿子还是我的好朋友。
应用推荐