三是农技推广体系不健全，科技成果转化困难等，使科技对粮食生产的贡献率仍

三是农技推广体系不健全，科技成果转化困难等，使科技对粮食生产的贡献率仍然较低，目前大致为40％左右，尚存在较大的提升潜力。

結果 (英文) 1:

Third, the agricultural extension system is not perfect, scientific and technological achievements into difficulties, the contribution rate of science and technology of food production is still low, is roughly 40 percent, surviving in greater upgrade potential.

結果 (英文) 2:

Three is the agricultural technology extension system is not perfect, the transformation of scientific and technological achievements difficulties, make science and technology on food production contribution rate is still low, roughly at present is about 40%, there is a huge growth potential.

結果 (英文) 3:

Three agro-tech extension system is inadequate scientific and technological achievements into difficulties, technological contribution to food production rate remains low, roughly around 40% now, there is a larger upgrade potential.