分析了桥式起重机典型事故发生机理，运用事故树分析法对桥式起重机事故发生进行了分析，从而为能够找出安全隐患，制定出最优的控制措施提供了理论上的依据。
Fault Tree Analysis Method is applied to analyze typical accidents on bridge tramway in order to develop theoretical base for finding out potential risks and stipulating optimal control measures.
汤姆很仔细地看完那辆自桥式起重机后，转过身对于店主说：“这辆自桥式起重机少了一盏灯，但在广告上的自桥式起重机是有的。”“
After examining the bicycle carefully, Tom turned to the shopkeeper and said, "There isn't alamp on this bicycle, but there was one on the bicycle in your advertisement."
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