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- By use of 3-D ultrasonic doppler velocimeter,the turbulence characteristics of water flow in the spur dike head and backflow region are observed and analyzed systematically. 利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析,得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。
- Then,the flowfield of nozzle exit vicinity and backflow region are calculated by using DSMC method,The results show that with this method,the flow property of this region can be accurately described. 本文分析了高空羽流流场的特性，论述了DSMC方法的原理以及涉及到的关键技术，应用DSMC方法数值求解了喷管出口附近及倒流区流场。
- Numerical Simulation on the Dimension of the Backflow Region in a Gas Burner 瓦斯燃烧器回流区数值模拟研究
- Study of the backflow regions in a gas burner 瓦斯燃烧器回流区测试
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- Storms spring up easily in this region. 这个地区很容易发生风暴。
- He is earning a salary in the region of25,000. 他当时的薪金在25,000英镑左右。
- A storm that cut off power to the whole region. 切断了整个地区电力供应的暴风雨
- A planar region bounded by a circle. 圆形区，圆形空间被圆所包围的一个平面区域
- A vineyard or wine-producing region in France. 克鲁法国的葡萄园或葡萄酒生产区
- Food and fuel were scarce in this region. 这地区食物和燃料都很缺乏。
- Four required per backflow preventer. 每个防回流阀需要四个。
- There used to be a military base in the region. 这地区过去有个军事基地。
- He is an authority in the region of chemistry. 他是化学界的权威。
- I have a pain in the lumbar region. 我腰部疼痛。
- There used to be a lot of troubles in that region. 那个地区过去动乱不已。
- Nobody likes to live in that desert region. 没有人喜欢生活在那个沙漠地区。
- Winterization of backflow preventers. 防回流阀的过冬处理。
- They are prospecting the region for oil. 他们正在该区勘查油矿。
