本文根据我部长期对莱康明发动机金属屑故障的数据统计，详细分析了发动机挺杆座磨损的机理和多种成因，并提出了相应的改进和防范措施。
The paper analyzes in details the wear reasons of engine tappet rod and proposes the relative measures for improvement based on the statistical data on metal troubles from our department.
在他周围的建筑开始倒塌，汽车像玩具一样晃动时，一座电线杆砸在了他的腿上。
A utility pole fell onto his legs as the buildings around him crumbled and the cars shook like toys.
当搬运这台仪器时，除了搬运杆和床座之外，其他零件都不要碰。
While carrying the instrument, don't touch any parts but carrier bars and the bed.
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