This paper introduces a fixedcrane faults diagnosis system used in port, and focuses on the method of inferring rule based on the pretreatment of sampling signal.
In this stage, the lifting frame was fixed to a hook attached to a crane, and the hull was lifted completely clear of the seabed and transferred underwater into the lifting cradle.
在这一阶段，吊架固定在吊车的挂钩上，船体完全脱离海床，在水下被转移到吊篮里。
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Down below, the workmen had prepared a metal net, which was fixed to the ground with long nails, all around the space where the crane was slowly lowering its load.