| Chinese | English |
| 两周期过程 | two-period process |
| 产品生命周期 | product life cycle A product life cycle includes the following phases: acquisition of raw materials, production, packaging, distribution, use, recyling, and disposal (产品的生命周期包括以下几个阶段：原材料、生产、包装、销售、使用、回收和处理。) |
| 全球气候研究计划全球能源与水资源周期实验 | global energy and water cycle experiment |
| 周期性过程 | batch process |
| 材料生命周期 | material life cycle All the stages involved in the manufacturing, distribution and retail, use and re-use and maintenance, recycling and waste management of materials (涉及材料的制造、分发、零售、使用、再利用和维护、回收和废物管理等所有阶段。) |
| 水周期性现象 | hydroperiodism (hydroperiodismus) |
| 水周期的 | hydroperiodic (hydroperiodicus) |
| 水蒸气强度观测周期 | water vapor intensive observing period |
| 火灾-水灾周期 | fire-flood cycle |
| 生产周期管理 | life-cycle management Management of all the stages involved in the life of a product such as raw materials acquisition, manufacturing, distribution and retail, use and re-use and maintenance, recycling and waste management, in order to create less environmentally harmful products (对产品在生命周期中涉及的所有阶段的管理，如原材料采购、制造、分销及零售、使用和再利用、维护、废物管理和回收，以减少环境方面有害的产品。) |
| 生命周期 | life cycle The phases, changes, or stages through which an organism passes throughout its lifetime (生物体在其一生中经历的阶段、变更或时期。) |
| 生物周期 | biological cycle A series of transformations or biological events which follow one after the other one, reaching at the end of the cycle the initial conditions, as in the life cycle of many animal and plant organisms (从初始状态开始到达周期结束又达到初始条件的过程中的一系列生物事件的转换，正如许多动物和植物的生命周期。) |
