persistent drought 持续干旱 pollution-free vegetables 无公害蔬菜 post-harvest food losses 收获后和销售信息 ..
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The new production technologies of pollution-free vegetables in protected fields are introduced.
同时，介绍了设施无公害蔬菜生产的新技术。
With the improvement of people's living standard, demand of people for"pollution-free vegetables"becomes stronger and stronger.
随着生活水平的提高，人们对蔬菜的质量安全要求日益强烈。
City residents are joining the increasing number of people who are growing vegetables on their balcony to cut spending and enjoy pollution-free vegetables.
为了节约成本并能享用到无污染蔬菜，越来越多的城市居民加入阳台种菜的队伍。
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