其生态效益和经济效益是当今研究的热点。
Its ecological and economical benefit is the focal point at present.
实践表明，这些模式具有良好的生态效益和经济效益。
It was tested that these models had effective benefit both in ecology and economy.
三年试验结果表明，新系统显著提高了生产力、生态效益和经济效益。
The results showed that the productivity, ecological and economic benefits were greatly raised in the new system.
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