The high terrestrial plants cultivated with recycling water system is a kind of phytoremediation system with a low cost , simple construction and high purification efficiency.
高等陆生植物循环水培系统是一种成本低廉、结构简单、净化效果显著的植物修复系统。
This system is simple in construction, universal in application, convenient in modification and low in cost.
该系统结构简单，通用性强，成本低，修改灵活。
It adopts single supply operator amplifier based on the characteristic of mobile medical service system. The design realizes low cost, simple construction and superior capability.
基于移动医疗服务系统功耗低的特点，采用运放单电源供电电路，可实现成本低廉，结构简单，性能优越的设计。
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