This paper presents an artificial neural network(ANN) approach to determine the time delay for a heating, ventilating, and air -conditioning(HVAC)plant to respond to control actions.

本文提出一种人工神经网络（ANN）方法，确定暖通空调（HVAC）系统对控制信号响应的时间迟延，在研究中选用了四层网络。

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Efficiency: Delay skin aging, purify skin, effective skin conditioning and increase skin elasticity. To some extent alleviate the pain headache, pain, muscle pain.

产品功效：能延缓皮肤衰老，净化肌肤，有效调理皮肤、增加皮肤弹性。一定程度缓解疼痛(头痛、经痛、肌肉痛)。

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If the tarmac delay is more than an hour, the airline must provide air conditioning, use of toilets and water.

BBC: EU unveils new air passenger rights