人造卫星早已传达给我们这一信息(通过农业气象卫星和GPS)：多余的食物可以让将近十亿人一年免于饥饿。
Satellites already deliver information (through agricultural weather satellites and the GPS system) that provides the extra margin of food that keeps nearly a billion people a year from starving.
为淮北地区春季、初夏季节的农业气象干旱研究和预报提供了参考依据。
This is helpful for research and prediction of the agrometeorological drought during the spring and early summer in this area.
根据当地柞蚕实际生产与气象条件的关系，确定了柞蚕生产的农业气候区划指标。
The agricultural climate division index is studied and defined according to the relationship between tussah production and meteorological conditions.
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