How to scientifically administer and control mixed traffic flow is a problem that needs imminently to solve.
如何科学管理和控制混合交通流是一个必须解决的迫切问题。
This paper also discussed the outlook of organic soilless culture and how to scientifically apply fertilizers.
对有机基质栽培的前景及进行和科学施肥等进行了讨论。
How to scientifically exploit, administer and use design resources depends on continuous inquiries into the theory and practice of design.
至于如何科学有效地开发、管理、使用设计资源,还有待于人们在设计理论与设计实践中继续深入探讨。
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