然而，目前的影响已经使瀑布的冲刷速度变得缓慢了。
However, modern influences have caused the falls to wear away less quickly.
对烧蚀数据进行的回归分析表明，最大线烧蚀率与颗粒冲刷速度平方接近正比关系，而颗粒浓度的影响非常小。
The regression analysis on the erosion data shows that the max erosion rate is linear to the square of velocity approximately and the influence of concentration of particles is remarkably small.
它具有火焰不直接冲刷加热工件、升温速度快、加热温度均匀、节约燃料、结构新颖等特点。
It possesses the characteristics of fast speed heating up, homogeneous heating, fuel conservation and novel structure.
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