This authorization we production equipment and protection system component, in potential explosive gas environment use.
此授权我们生产设备和保护系统的组成部分，在潜在爆炸性气体环境中使用。
These experiments have proved that, for the coal dust with high ash component, after multiple actions by shock wave, it's explosive characteristic has been greatly increased.
试验结果表明，对于高灰分煤尘，在冲击波的多次冲击下煤尘的爆炸特性明显增强，危险性大大增加。
The three-dimensional discrete component process is applied to study the propagation course of explosive wave in rock.
采用三维离散元程序研究了岩体中爆炸波的传播过程。
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