...欧洲人向当地人学习了耕种方法就是把三种东西种在一起，其中一个是bean，它们三个相互之间可以互补并提高产量（improve yields）（有题，答案就是三种东西一起种然后improve yield）。
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Improve Corn Yields 提高玉米产量
Yet modest water storage can hugely improve yields in rain-fed agriculture, by smoothing over short dry spells.
然而，少量的储水就能缓解短暂干旱季节的用水紧张，从而大大提高雨养农业的产量。
To help improve yields, Toyota Tsusho in June acquired a stake inJOIL(S) Pte, a Singapore-based company specializing in tissue culturesand selective breeding of the plant.
为了提高产量，丰田通商在6月份收购了一家名为JOIL的新加坡公司的股份。 该公司主要业务是对麻风树进行选择育种和组织培育。
The development of new candidate vaccine viruses by the WHO network is continuing to improve yields (currently 25% to 50 % of the normal yields for seasonal influenza for some manufacturers).
世卫组织网络进行的新候选疫苗病毒开发工作在不断提高产量(目前某些生产商的产量达季节性流感正常产量的25% - 50%)。
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