Based on the data of a long term field experiment of dryland crops, this article points out that yield fluctuation, expressed in fluctuating coefficient, is a regular phenomenon in dryland farming.

根据旱地作物长期田间试验数据，论述了旱作农业生产中作物产量波动性是一个规律性现象，并用波动系数加以表述。

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We introduced a structure equation with macroscopic parameters, which can explain both the yield point phenomenon and strain-ageing of low carbon steels.

我们提出一种新的来自于宏观量构成的理论，将低碳钢的屈服及时效现象统一于同一个理论之下。

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Heterosis as a common biological phenomenon in nature is an efficient approach to increase crop yield.

杂种优势作为自然界一种普遍的生物学现象，是提高作物产量的一种有效途径。

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The phenomenon of steep yield curves is not limited to Treasurys.

FORBES: Stretch That Yield

For the first time in several years, Treasuries outperformed the high yield sector, but this should be a short lived phenomenon.

FORBES: Savvy Investors Survive Fed's Remorseless Abuse