边坡工程中的植被不仅能美化环境，还具有控制雨水冲蚀、稳定边坡的作用。
Vegetation on slopes not only serves as landscape function, but also controls rain water erosion and slope stability.
在高差压的工艺条件下，如果选型不当，控制阀往往出现冲蚀、汽蚀问题，尤其是在蒸汽系统和注水系统更为突出。
In high different pressure process condition, if the valve type selected were not correct, erosion and corrosion would occur in the trim, especially in steam systems and water spraying systems.
通过分析冲蚀产生的原因及影响因素，认为冲蚀程度是由冲蚀流速所控制。
Through analysing the reason and affecting factors of washout, it is considered that the washout degree is controlled by washout flow rate.
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