求翻译：本文主要通过对蛙-稻，鸭-稻，鱼-稻等共生系统防治病虫害的机理和效果及推广限制作用的论述，和经济效益的估算，突出蛙稻共生系统的优越性。并从肥源，水源，药源几个方面改进蛙-稻生产技术，使之实现完全清洁生产，达到经济效益，社会效益，生态效益的完美结合。是什么意思？

In this paper, through the Frog - rice, duck - rice, fish - such as the symbiotic system rice pest control mechanism and the effect of limiting the discussion and promotion, and economic estimates, highlighting the superiority of the symbiotic system rice frog. And from the manure, water, medicine s

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This article mainly through to frog - rice, duck - rice, paragenesis system plant disease protection and so on fish - rice mechanisms and effect and promoted limit function elaboration, with economic efficiency estimate, prominent frog rice paragenesis system superiority.And from the fertilizer sour

This primarily through the frog-rice, duck-rice, fish-rice mechanism and effect of symbiotic systems, such as controlling disease and promotion of the restrictive effect of the exposition, and estimates of economic benefits, highlighting the advantages of symbiotic systems of frog rice. And from the

正在翻译，请等待...