The thesis research the calculation method of water environmental capacity for artificial controlled semi-close river taking Laofuhe river as an example.
本文以老府河为实例探讨了人工控制半封闭河流水环境容量的计算方法。
2
Application of some measures, such as semi-close unloading and increase of crane tube plug etc. can availably decrease oil gas concentration in operating area.
采用半封闭卸车、增加鹤管堵头等措施可有效降低作业空间的油气浓度；
3
It is shown by theoretical analysis and simulation that this control low, which can applied to semi-close loop and full-close loop system, is simply in design and on-line realization.