以下为句子列表：
英文: A program to regulate the number and spacing of children in a family through the practice of contraception or other methods of birth control.
中文: 计划生育：通过避孕或其它控制生育的方法来控制每个家庭孩子的数量和间隔的计划。
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英文: Abstract: Characteristics of film hole irrigation and effects of irrigation technological parameters on ir-rigating quota are analyzed, and the relationships among discharge per unit width, hole spacing and ir-rigation quota are studied in this paper, bas
中文: 文摘:根据膜孔灌溉大田灌水试验资料，分析了膜孔灌溉特点和灌水技术要素对膜孔灌灌水定额的影响，研究了单宽流量与开孔率与膜孔灌灌水定额的关系。
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英文: After 31) figuring out the ideal 32) spacing for the cars and making 33) ramps onto the blocks, he was off to the patent office.
中文: 计算出理想的车位间隔、并且架设坡道以便驶上木块之后，他便到专利局去了。
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英文: Air Export Operation:Offering and handling the full set of services including spacing booking with airlines in both Tianjin and Beijing,documentation,trucking arrangement,tracking shipping information,etc.
中文: 空运出口操作部：提供订舱、单证，提货信息查询等服务。
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英文: ACUTE HEMODYNAMIC CONSEQUENCES OF VENTRICULAR DEMAND PACING AND FULLY AUTOMATIC PACING
中文: 心室按需起搏和全自动起搏的急性血液动力学效应
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