The critical safety thickness of the top pillar has been confirmed according to the instability condition.
根据失稳条件确定了顶柱的临界安全厚度。
Finally, with a gold mine as a case, the rationality of selecting the structural parameters of stope were analyzed and judged through the instability condition of system.
最后，以某金矿为实例，利用系统失稳条件对其采场结构参数的选取合理性进行了分析判断。
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.
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；
If the public address system is operated below but too close to the instability condition the frequency shifter can reduce effectively the interference of the regenerative reverberation.
若语言扩声系统临近不稳定状态工作，频移器可以有效地减少再生混响干扰。
If the public address system is operated below but too close to the instability condition the frequency shifter can reduce effectively the interference of the regenerative reverberation.
若语言扩声系统临近不稳定状态工作，频移器可以有效地减少再生混响干扰。
应用推荐