Extruding of water power increases the speed of gas scattering, which makes gas fully release, reduce the gas pressure goes beyond the limit and have remarkable effect to safety production.

由于水力的挤压作用，增加了煤层瓦斯放散的速度，瓦斯得到充分释放。减小了工作面瓦斯超限的威胁，对安全生产有显著的作用。

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At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.

而较高气压时，束电子除受自身电磁场作用及库仑碰撞散射外，等离子体不稳定性使束流传输效率明显降低。

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Combination of stimulated Raman scattering properties of gas and solid laser harmonic technology greatly expands the covering range of the wavelength.

将气体的受激拉曼散射特性以及固体激光谐波技术相结合，大大扩展了波长的覆盖范围。

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