| 1. | The combustor resonance properties are portrayed by instability zones, one zone for each acoustic mode .
燃烧室的共振特性用不稳定区表示，每种声振型都有一个这样的区域。 |
| 2. | It was benefited for southern spread of inertia - gravity wave in the symmetric instability region of the south of the high layer of rain belt
高层雨带南部的对称不稳定区，有利于重力惯性波的向南传播。 |
| 3. | There were wind shear and maximum wind speed occurred above or below the height of potential instability area and one of them happened before potential instability
位势不稳定区所在高度的上方和下方会有风向切变和风速极大值中心，并且风切变或急流中心会早于位势不稳定的出现。 |
| 4. | Embedded in a large - scale cold front - cyclone are often meso - and small - scale wet thermal / dynamic structures that are uneven , with a huge cold " cushion " at low levels , frequent meso cold surges and related potentially unstable zones at middle levels
在大尺度冷锋气旋天气系统中，嵌有不均匀的中小尺度湿热力动力结构。表现为低层大尺度冷垫、中空不断出现的中尺度“冷涌”及对应的位势不稳定区。 |
| 5. | When the atmosphere system occurs nonlinear instability in the subcritical instability region , it will split more wave resolutions than in the supercritical instability region and need more time to occur the subcritical instability , therefore it may have effect on the form and development of some synoptic system . 3 . starting from nonlinear equations on the f - plane containing frictional dissipation under the boussinesq approximation
大气系统在亚临界不稳定区发生非线性不稳定时，会比超临界不稳定区分裂出更多的波动解，而且发生亚临界不稳定需要更长的时间，因此它可能在某些天气系统的形成和发展过程中起到一定的作用。 |
| 6. | And such zones act as an important dynamic condition for low - level water transfer and also a favorable environmental condition for " seeding - water supply " . there stronger echoes are detected , meaning that bubble convection develops in the precipitating fields of the clouds that are homogeneous in the main , causing centers of > 10 mm / hr surface rainfall to occur and migrate
这些不稳定区是低层水汽输送摘要重要的动力条件，也是“播撒一供应”机制发生的有利的湿热力环境条件，云系较强降水回波在这里得到发展，使整体均匀的冷锋层状云系降水场有较强回波带和对流泡发展，带来地面有> 10mmlh较强降雨中心产生和移动。 |
| 7. | The magnitude of these variables increased approximately ten times . it helped the rapid releasing of instability energy . the interaction of high - level and low - level mesoscale system leads to the rainstorm . the vertical cross section analysis of potential temperature tells us that rainstorm take place in the warm - moist and instability area . usually locate in the very stiff moist isentropes and it can lead to the development of vortex
通过对相当位温的垂直剖面分析，可知两场暴雨的中低层都为暖湿不稳定区，暖湿不稳定区上部冷空气明显扩散，暴雨产生在暖湿对流不稳定区内，通常产生在_ e陡峭和密集区中， _ e陡峭和密集区有利于涡旋发展。 |
