Thus the brain's flavor-recognition system is a highly complex perceptual mechanism that puts all five senses to work in various combinations.

因此，大脑的味觉识别系统是一个高度复杂的感知机制，它让所有五种感官以各种组合方式工作。

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Mother Nature follows the principle of redundancy by selecting a simple mechanism or module as a building block for a complex system and then using that module over and over again in other systems.

自然母亲遵循冗余原理，她选一个简单的机制或模式做为构建复杂系统的积木，然后在另一个系统里反复的使用它。

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However, the running mechanism of diesel engine is quite complex, and the system is nonlinear and time-variable, so difficulties in physical modeling arise.

但由于柴油机运行过程机理相当复杂，且系统具有非线性、时变性，这给用物理方法建模带来了困难。

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While separation of duties does apply, the principle of economy of mechanism indicates that creating multiple virtual servers on a single host with software like VMware is creating a complex system.

FORBES: Teach Your Boss to Speak Security: Economy of Mechanism