以下为句子列表：
英文: As people in the rich world live longer and grow fatter, queues for kidneys are lengthening fast: at a rate of 7% a year in America, for example, where last year 4,039 people died waiting.
中文: 由于富裕国家的人寿命延长，身体更加发胖，等候肾脏移植的队伍也迅速变长：例如，在美国需求增长率为每年7%，去年4039人在等待肾脏移植的过程中死亡。
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英文: Based on the energy band characteristics of ordinary negative electron affinity emitter GaAs, the design of lengthening the diffusion lengths of negative electron affinity emitter GaAs was presented, and the special negative electron affinity emitter GaAs
中文: 摘要根据通常负电子亲和势二次电子发射材料砷化镓的能级特点，提出延长负电子亲和势二次电子发射材料砷化镓的逸出深度的理论设计，设计出了特殊的负电子亲和势二次电子发射材料砷化镓。
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英文: It is very important to reduce the vibration of the vacuum pump for keeping its quality and lengthening its service life.
中文: 摘要降低滑阀式真空泵的振动对提高泵的质量、延长泵的寿命有着重要的意义。
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英文: Meanwhile ,the company undertakes the windowsill processing of arc, widening and lengthening .The product is tally with the demand of environ went protection and we will provide you the best fore-sale and after-sale service.
中文: 同时还承接弧型，异型、加宽、加长的窗台板定制业务，并具有良好的售前和售后服务，材料符合绿色环保要求。
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英文: On the basis of the tests as well as experiments, the best break-in times of transmission gear with a low amplitude load were found, and the rule of lengthening the fatigue life of these gears with different times of breaking-in was summarized.
中文: 在试验的基础上，给出该变速箱齿轮低载强化的最佳磨合次数，并总结出该齿轮在交变载荷下不同磨合次数的疲劳寿命增长规律。
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