According to contrastindex curve model and hyperbolic model results, the power of multi- Item type prediction accuracy is higher than the latter two.
对比指数曲线模型和双曲线模型的结果可知，幂多项式模型的预测精度均高于后两者。
2
Good enough, but about all you can do with this structure is set and retrieve elements by individual (multi-dimensional) index. In contrast, a Numarray array is a bit more flexible.
很好，但是您对这种结构所能做的只是通过单独的(或者多维的)索引来设置和检索元素。
3
In contrast, if you try to access a single element with an index outside the allowed range, you get an exception.