大宗谷物的产量从20世纪50年代开始指数级的增长是由于更好的粮食生产手段和新的小麦品种大大弥补了火热的七月造成的影响。
Yields of this staple grain have increased exponentially since the 1950s because better farming practices and new wheat breeds have more than made up for those hot Julys.
介绍了系统级芯片的定义、优点、构成要素、设计原则、品种和目前存在的问题。
The definition, merits, essential factor to constitute, principle to design, variety and existent problem at the moment are introduced.
采用分光光度法分析了不同品种枸杞多糖四个级分的含量，为枸杞子品质评价提供了依据。
The contents of four fractions of Lycium barbarum polysaccharides (LBP) in different varieties were analysed. This method car be used for quality evaluation of Fractus Lycii.
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