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壅塞
释义
壅塞
Encyclopedia
理学
跨声速流动
释
choking
壅塞
管道中某一截面处的流速达到声速时所发生的一种流动现象。其表现为:不论管道出口外压强如何降低,声速截面前的流速、压强等都不再发生变化,相应地流量也保持不变。壅塞有许多种,常见的有超声速风洞(见风洞)起动壅塞、飞机进气道壅塞、摩擦管壅塞和加热管壅塞等。
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training center of uban rail transit
Training Class for Art Leaders in the Countryside
Training Course of Northeast Film Studio
Training Curriculum System
Training Evaluation
training expenditure for labour force
training flight
Training for Library Service
training in nursery
Training Institute of Music attached to Beijing University
training institutions for television artists
training levee
training load
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