They also placed a small ring inside the water tank that whirled more rapidly than the cylinder and created a miniature lab version of the jet stream.
他们在水箱内放置了一个比汽缸速度快的环，制造微型的激流。
2
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.
The process of jet mixing in the reactor was studied with tracer technique and the effects of the opening structure on the wall of the feed ring and the momentum ratio to the jet mixing were analyzed.