比方说，概念性的信息常常与支持概念所需要的参考信息和任务信息混杂在一起。

For example, conceptual information often freely mixes with the reference and task information needed to support the concept.

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如果给下级下达任务，请将它打印在A 1纸上，放在每个人的桌子上，避免和其它A 4纸混杂。

Fig3. Print tasks on A1 and unfurl it on every junior's desk to avoid being messed with loads of existed A4s.

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血管影像的特点是受噪声影响、血管形态模糊、背景噪声和目标混杂，以及目标与背景对比度低，这些都给分割任务带来困难。

Vascular tree angiograms suffer from noise and they are fuzzy, low-contrast with the vessel disturbed by background. Thus, segmentation is a difficult task.

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