Low cost and good effect by applying Li Fu Man Premix in controling parasite. 3.
The result showed that the entrustment agency mechanism was a low cost and efficient mechanism of enterprise pollution treatment. 结果表明,委托-代理机制是企业治污的低成本高效率机制。
This thesis sets up a method to pursue optimum design of array type QCM by using numerical packages (ANSYS) so as to provide a low cost and high efficiency design and development. 本研究利用电脑辅助设计软体（ANSYS）建立一套设计多通道石英晶体微天平测量器之方法，提供一套低成本且快速之设计研发方法。
In order to achieve a low cost and an excellent voltage regulation, it is the best choice to add a MagAmp used as post regulation for the flyback converter. 为了达到低成本且又兼具良好电压调节率的要求，返驰式架构加上磁放大器来做后置稳压调节控制就成为最佳的控制架构。
Sewage irrigation is not only a low cost and low energy-consuming way in dealing with polluted water, but also an effective way for sustainable utilization of water resource. 利用污水进行污水回灌农田是一种低费用、低能耗的污水处理途径,也是保障水资源可持续利用的有效措施之一。