The effect of pollination with complex pollens was different in various cross combinations;
混合花粉授粉在不同的杂交组合中对提高杂交结实率的效果不同；
He could effect cross-fertilization between them.
他可以实现它们间的杂交授粉。
These are fixed effect model and cross section model.
这些都是固定效应模型和横截面模型。
This paper describes the effect of ingot cross section on thick plate yield.
简述了钢锭断面形状对厚板成材率的作用。
Therefore, we must cross this with another variable in an effort to isolate the effect.
因此，我们必须在比较过程中添加其他变量，避免出现这种结果。
Therefore, we must cross this with another variable in an effort to isolate the effect.
因此，我们必须在比较过程中添加其他变量，避免出现这种结果。
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