以下为句子列表：
英文: In order to maintain the railway transportation operation to provide convenient and safe service, a set of safety laws and indemnity regulations is required to clarify the liability of any safety problem in case of accidents.
中文: 对于平时如何维持系统正常运作并保有一定之安全水准，以及事故发生复完善的损害赔偿制度，则需要一套健全安全与责任规範制度，以期能提升我国轨道运输系统安全，釐清轨道运输安全与责任关系，保障旅客及社会大众权益。
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英文: This paper introduce the safety problem exist in every machinery and components in hag-making fond packaging machinery briefly, and introduces mechnical safety design concept.
中文: 摘要介绍了在立式制袋食品包装机中各机构和部件存在的安全问题，引入了机械安全设计理念。
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