So, in order to improve the ROI of training, it is a realistic and urgent issue to study how to improve the training transfer and what factor effects training transfer in hotels.

因此，对饭店培训迁移这一培训关键环节进行研究、探讨，提高饭店的培训迁移率便成为一个非常具有现实意义的紧迫课题。

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The sequence of the model factor effects (N>K>P) and the relation between high yield and fertilizer application, and the mutual functions among the yield factors of various fertilizers.

明确了模型因素效应顺序（氮肥＞钾肥＞磷肥）和高产与施肥的关系，以及各肥料产量因素间的交互作用效应。

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It is impossible to do a counterfactual analysis-to hold one factor constant and see the effects on the rest of the economy.

想做一个反事实推论分析(控制一个因素为常量，观察其对其他经济产生的影响的一种分析方法)几乎是不可能的。

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Feinberg was 39 when she had her first child, and that is a factor that effects the risk assessment.

NPR: Online Calculator Estimates Breast Cancer Risk

To factor out the effects of age, we limited the sample to the 20 players who were 26 years or younger at the time of the injury.

WSJ: Give Thanks for That Knee Injury��Derrick Rose, Rajon Rondo

Though it has accelerated in recent years, outsourcing to countries with lower labor costs has been a factor in the visual effects business for more than a decade.

WSJ: Red Ink Spills Across Visual Effects Industry