Biological Immune is a highly complexity and self-adaptive system with capability of learning, memory acquisition, patternrecognition and so on.
生物免疫是一个高度复杂的自适应系统，具有学习、记忆和模式识别的能力。
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The patternrecognition ability may also be found in other biological systems: the cat knows the way home, the dog recognizes his boss from the footsteps or the bee finds the delicious flower.
Imitating the biological olfactory system, a bionic nose system was constructed, which consists of gas sensor array and patternrecognition system of neural network.