划口(ruling),沿折缝线用花轮刀切割书页使其具有一定长度和间隔的口子,以便于折页时排除空气,保证折页准确。
中华人民共和国人口与计划生育法 China’s population and family planning law ; Law of the People's Republic of China on Population and Family Planning
流动人口计划生育服务工作 family planning services for the floating population
计划人口 design population
出口易计划 TradeYep
国家出口计划 National Export Initiative
港口规划与布置 Port Planning and Layout
可程序规划外围接口 programmable peripheral interface
老龄人口规划 Oslash ; Design for Ageing Population
人口规划 program for planning population growth
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