The optimal design has been made of the general drive-ratio of the rising mechanism of 160T track crane.

对160T汽车起重机起升机构的总传动比分配进行了优化设什。

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The optimal design has been made of the general drive-ratio of the rising mechanism of 160T track crane. ln the course of the design , a random-optimal method is used and run on the IBM-386 computer.

对160T汽车起重机起升机构的总传动比分配进行了优化设什。设计过程采用随机优化方法并在IBM-386微型机上运行通过；

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Track is the foundation of crane or car running smoothly, generally requires checking 2 ~ 4 times every year.

轨道是起重机或小车平稳运行的基础，一般要求每年检查2 ~ 4次。

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The first phase was halted after four minutes when Italian Giancarlo Fisichella spun and stalled his Ferrari, with the car having to be lifted off the track with a crane causing a 14-minute delay.

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But with the crane on track, it necessitated the safety car, resulting in the pitlane being immediately closed.

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