原太阳吸积盘为冷的薄盘，盘中热对流不稳定性由外而内，由上而下地终结；
For the cold protosolar accretion disc, convective instability will gradually end from the outer region to the center and from the surface to central plane.
产生冬季暴雨的物理条件与充沛的水汽、强烈的对流不稳定和辐合上升运动密切相关。
The physical conditions of rainstorm creating is related with plentiful vapor and instable strongly air convection and convergence upward movement.
具体表现为其误差大值区通常出现在对流不稳定区，并且随着水平风场向其下游扩散。
The results show that, the development and evolution of initial perturbation errors have a close relationship with the regions of the convective instability and the horizontal wind fields.
高空急流提供动力不稳定条件，低空急流是暴雪区水汽的提供者和对流不稳定能量释放的触发者；
The upper-level jet created the dynamic instability condition and the low-level jet played the vapour provider of the snowstorm and the trigger of convective instability energy release.
分析指出，该飑线系统是由高空槽前型的上干下湿引起的不稳定强对流天气。
The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.
对流层低层南风气流的加强，可影响对流层中层的暖湿程度减弱，从而加强了对流层低-中层内的对流性不稳定。
The wet and warm degree in middle troposphere is weakened and the convective instability in lower middle troposphere is strengthened by increasing wind speed of southern flow.
它能预示强对流天气层结的不稳定特征和高能量。
Warning index pattern show convective instability characteristic and high energy.
了解强不稳定度参数及其使用特性无疑对强对流天气的分析与预报有很大帮助。
To know the environmental instability parameters and their character will undoubtedly be beneficial to severe weather forecasting.
高空前倾槽的结构加大了大气的垂直不稳定，是引起强对流天气的重要原因。
The structure of the forward-tilted trough increases the atmospheric instability and caused the severe convective weather.
深层对流和不稳定能量的释放可促使降雨的发生。
The deep convection and the release of unstable energy can act as a trigger.
着重研究了径向粘滞力对含径向对流吸积盘的径向-环向不稳定性的影响。
We find that the introduction of radial viscous force have no influence on stability of viscous and thermal modes, but more influence on the stability of acoustic modes.
熔池中存在的对流和激光扫描过程中工作台运动的不稳定造成了熔池表面波纹状组织和熔池中三维条带状组织的出现。
Two kinds of banded structure caused by convection and unstable moving of the worktable have been observed on the surface of the molten pool and in the melted region.
高频不稳定性使室壁对流传热系数大大增加。
High frequency instabilities result in grossly increased convective heat transfer coefficients in the chamber walls.
锋面南方存在深厚的位势不稳定区域，一旦有抬升运动产生，便很容易激发出强烈的对流运动，从而产生强降水。
A deep area of potential instability existing on the south of front, intense convective motion and heavy rainfall will be aroused in the case of uplift.
以上这些大气层中，只有对流层(尤其是边界层)中气象参数的垂直分布具有显著的不稳定性的特征。
Of all the above atmospheric layers, only the troposphere (especially its boundary layer) is characterized by a marked instability of the vertical distribution of the meteorological parameters.
对流层高层或平流层低层高位涡的下传有利于位势不稳定能量的释放，使得暴雨增幅。
The tropopause folding, which means that high PV spreads downward from the upper troposphere or stratosphere, helps the releasing of potential instability energy and the development of rainstorm.
一些对流单体和对流群天气会通过地形影响而成，而且但大气不稳定时，这些影响会延伸到下风方向。
Some of the cells and clusters are undoubtedly set up through orographic effects and these influences may extend well down-wind when the atmosphere is unstable. 2.
一些对流单体和对流群天气会通过地形影响而成，而且但大气不稳定时，这些影响会延伸到下风方向。
Some of the cells and clusters are undoubtedly set up through orographic effects and these influences may extend well down-wind when the atmosphere is unstable. 2.
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