Cracks in Marine main engine or auxiliary engine body may lead to scrap of the machine or serious accident, which is a badly hidden trouble for safety of a vessel.
船舶主辅机机体裂纹的延伸会导致机器报废或发生严重机损事故，这对船舶安全营运是一大隐患。
Test to reliability of remote-control system of marine main engine is very important, for it concerns much with the safety of marine power set, even the ship itself.
船舶主机遥控系统的可靠性， 关系到船舶动力装置及整个船舶的安全， 对其可靠性的检验尤为重要。
This paper proposes a method to build up a model of a Marine main engine based on BP neural network. A new method of selecting leaning rate is also stated using dynamic optimal algorithm.
该文研究用BP神经网络建立船舶主柴油机模型的方法，并对BP算法进行了改进，提出了一种动态优化学习率的方法。
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