sonic throat 中文意思是什麼

sonic throat 解釋
音速喉道
  • sonic : adj. 1. 【物理學】（利用）音波的；聲音的；音速的。2. 能發聲音的。adv. -ically
  • throat : n. 1. 【解剖學】咽喉，喉嚨；喉頭；頸前。2. 嗓子，嗓音。3. （器物的）咽喉狀部分；窄路，出入口。4. 【火箭】（噴管的）臨界截面。vt. 1. 用喉音說唱，沙啞地說唱。2. 掘（溝）；開槽。
  1. As the velocity in the nozzle throat is sonic, the effect must be transmitted upstream through the boundary layer.

    當噴管喉部達到音速時，這種影響一定是通過附面層向上傳播而引起的。
  2. Better agreements between computation results and experimental data were found using the models. ( 4 ) two phenomena in straight - convergent - divergent - straight microchannels were identified, which are different from the macroflow through experimental studies. one is that the first appearing sonic point position in microchannels is not near throat cross - section

    （ 4 ）對等直收縮擴張等直微管道中氣體流動的實驗研究發現兩個特異現象：其一為微管道內最早出現聲速點的位置不一定在喉部附近，其二為微管道中的臨界壓比與常規值有很大差別。
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