效益成本比 meaning in English
ebcr
Examples
- It offered a preliminary research based on the field experiment to study the mechanism of how to increase yield by water filtration irrigation in a technological way . the pinhole rigid plastic tube was used to improve the cost to efficiency ratio
试验主要通过田间试验，结合一定的技术分析方法，初步研究了大田玉米渗灌技术的节水增产机理，试验采用成本低易普及的针孔硬塑料管，以提高效益成本比。