求翻译：ushering Green Revolution and subsequent developments in agriculture(through yellow revolution and white revolution)in India through its research and technology development that has enabled the country to increase the production of food grains by 4 times,horticultural crops by 6 times,fish by 9 times(marine 5 times and in land 17 times),milk 6 times and eggs 27 times since 1950-51,thus making a visible impact on the national food and nutritional security是什么意思？

待解决 悬赏分：1 - 离问题结束还有