1. Qhov loj me, me me cuam tshuam rau qhov chaw ntws;
2. Kev siv ntau yam. Nws tuaj yeem siv tsis tau rau cov pa roj xwb tab sis kuj ua kua, thiab tuaj yeem siv rau hauv subsonic, transonic thiab supersonic ntws ntawm cov roj;
3. Kev ntsuas siab raug thiab rov ua tau zoo. Qhov tsis zoo ntawm cov xov hlau kub anemometer yog qhov kev sojntsuam cuam tshuam nrog qhov chaw ntws mus rau qee qhov, thiab cov hlau kub yog yooj yim tawg.
4. Ntxiv rau qhov ntsuas qhov nruab nrab ceev, nws tseem tuaj yeem ntsuas tus nqi pulsation thiab turbulent npaum li cas; Ntxiv rau qhov ntsuas qhov txav ntawm ib qho kev taw qhia, nws tseem tuaj yeem ntsuas qhov nrawm ntawm ntau qhov kev taw qhia tib lub sijhawm.
