next(), send()的返回值都是yield 后面的参数, send()跟next()的区别是send()是发送一个参数给(yield n)的表达式,作为其返回值给m, 而next()是发送一个None给(yield n)表达式, 这里需要区分的是,一个是调用next(),send()时候的返回...
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oxygen n yield 氧得率
n yield 氮素产量
chain n yield 链产额
fusion n yield 核聚变产额
fission n yield 裂变产额
neutron n yield 中子产额
Reduction of aldoses or ketoses yield sugar alcohols ,properly called ‘alditols,” HOCH2-(CHOH)n-CH2OH.
醛糖或酮糖被还原后变产生糖醇,确实的叫法为“多羟糖醇”(alditols),HOCH 2 -(CHOH)n-CH 2 OH。
The effect of applying N-fertilizer or not in wheat on soil fertility and grain yield and fertilizer-N use efficiency (FNUE) of rice in the wheat-rice cropping system were studied.
通过对前茬作物小麦设置施用氮肥与不施用氮肥处理研究它对土壤肥力及后茬作物水稻产量和氮肥利用率的影响。
The effect of five N levels on root yield and sugar content and production of sugar was studied with one beet variety, in order to select the best N level for high yield and high sugar content.
本试验主要是研究同一甜菜品种在五种氮素水平处理下对甜菜的块根产量、含糖率、产糖量的影响,寻求获得高产高糖的最佳施用氮素水平。
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