This will activate your parasympathetic nervous system which will calm you down and slow your heart rate.
这样能激活副交感神经，有助于安神和降低心率。
An improved neural network based on L-M algorithm has been applied to fault diagnosis expert system against to the slow convergence rate of conventional BP neural network.
针对传统BP神经网络训练中收敛速度较慢的缺点，提出一种基于L - M算法的神经网络应用于机械设备故障诊断的专家系统。
The results demonstrate that the formation rate of CO2 hydrate is rather slow in a quiescent system without surfactant, and hydrates are formed only at the gas-water interface.
实验结果表明，静态系统下，二氧化碳气体在纯水体系中的生成速率非常缓慢，只在气-液界面处有一薄层浆状水合物生成。
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