| 水循环 | shuǐ xún huán | water cycle / hydrologic cycle |  |
| 氮循环 | dàn xún huán | nitrogen cycle | |
| 硫循环 | liú xún huán | sulphur cycle | |
| 死循环 | sǐ xún huán | endless loop | |
| 碳循环 | tàn xún huán | carbon cycle | |
| 氧循环 | yǎng xún huán | oxygen | |
| 血液循环 | xuè yè xún huán | blood circulation | |
| 因循守旧 | yīn xún shǒu jiù | (idiom) to continue in the same old rut / diehard conservative attitudes |  |
| 恶性循环 | è xìng xún huán | vicious circle | |
| 水分循环 | | water cycle / hydrologic cycle | |
| 全球循环 | | global cycle | |
| 人才循环 | | brain circulation | |
| 催化循环 | cuī huà xún huán | catalytic chain / catalytic cycle | |
| 复合循环 | fù hé xún huán | combined cycle | |
| 冠脉循环 | guān mài xún huán | coronary circulation | |
| 郎肯循环 | láng kěn xún huán | Rankine cycle (engineering) | |
| 良性循环 | liáng xìng xún huán | virtuous cycle (i.e. positive feedback loop) | |
| 气候循环 | qì hòu xún huán | climate cycle | |
| 燃料循环 | rán liào xún huán | fuel cycle | |
| 热液循环 | rè yè xún huán | hydrothermal circulation | |
| 生物循环 | shēng wù xún huán | biological cycle | |
| 营养循环 | yíng yǎng xún huán | cycle of nutrients | |
| 再生循环 | zài shēng xún huán | regeneration cycle | |
| 核燃料循环 | hé rán liào xún huán | nuclear fuel cycle | |
| 柠檬酸循环 | níng méng suān xún huán | citric acid cycle / Krebs cycle / tricarboxylic acid cycle | |
| 起飞着陆循环 | | landing and take-off cycle / LTO cycle | |
| 地球化学循环 | | geochemical cycle | |
| 新闻循环基金 | | Public Information Revolving Fund | |
| 药物循环基金 | | drug revolving fund | |
| 空气循环风扇 | | air circulation fan / circulation fan | |
| 有章可循的制度 | | rule-based regime | |
| 联合循环发电厂 | | combined cycle power plant | |
| 海洋深层大循环 | hǎi yáng shēn céng dài xún huán | ocean conveyor belt | |
| 投资前循环基金 | tóu zī qián xún huán jī jīn | pre-investment revolving fund | |
| 生物地球化学循环 | | biogeochemical cycle | |
| 中央应急循环基金 | | Central Emergency Revolving Fund | |
| 食物循环技术项目 | | Food Cycle Technologies Project | |
| 统计事务循环基金 | | Statistical Services Revolving Fund | |
| 燃气轮机联合循环 | rán qì lún jī lián hé xún huán | Gas Turbine Combined Cycle | |
| 人道主义循环基金 | rén dào zhǔ yì xún huán jī jīn | Humanitarian Revolving Fund | |
| 生物地质化学循环 | shēng wù dì zhì huà xué xún huán | biogeochemical | |
| 不能循环利用的包装 | | non-reusable packing / disposable packaging / non-returnable packing / one-way package | |
| 臭氧的催化分解循环 | | catalytic ozone destruction cycle | |
| 核燃料循环多边办法 | hé rán liào xún huán duō bian bàn fǎ | multilateral approaches to the nuclear fuel cycle / multilateral nuclear approaches | |
| 核燃料循环信息系统 | hé rán liào xún huán xìn xī xì tǒng | Nuclear Fuel Cycle Information System | |
| 整体煤气化联合循环 | zhěng tǐ méi qì huà lián hé xún huán | integrated gasification combined cycle | |
| 全球能量和水循环试验 | | Global Energy and Water Cycle Experiment | |
| 世界水文循环观测系统 | | World Hydrological Cycle Observing System | |
| 核能及其燃料循环会议 | | Conference on Nuclear Power and its Fuel Cycle | |
| 自然资源勘探循环基金 | | United Nations Revolving Fund for Natural Resources Exploration / Revolving Fund for Natural Resources Exploration | |
| 妇女与食物循环技术项目 | | Women and Food Cycle Technologies project | |
| 减量化、再使用、再循环 | | reduction, reuse and recycling | |
| 遵循发展账户标准的情况 | | conformity with Development Account criteria | |
| 地方经济发展倡议循环基金 | | Rotary Fund for Local Economic Development Initiatives | |
| 密闭式循环再呼吸水肺系统 | mì bì shì xún huán zài hū xī shuǐ fèi xì tǒng | closed-circuit rebreather scuba (diving) | |
| 国际核动力及其燃料循环会议 | | International Conference on Nuclear Power and Its Fuel Cycle | |
| 核燃料循环多边办法专家小组 | | Expert Group on Multilateral Approaches to the Nuclear Fuel Cycle | |
| 联合国自然资源勘探循环基金 | | United Nations Revolving Fund for Natural Resources Exploration / Revolving Fund for Natural Resources Exploration | |
| 未接受保障监督的燃料循环活动 | | unsafeguarded nuclear fuel cycle activity | |
| 减量化、再使用、再循环、回收 | | reduction, reuse, recycling and recovery | |
| 创新型核反应堆和燃料循环国际项目 | | International Project on Innovative Nuclear Reactors and Fuel Cycles | |
| 当地偿还的循环核心预算资源调拨目标 | | locally reimbursed revolving TRAC | |
| 全球水循环方面人类权利和义务世界宪章 | | World Charter on the Rights and Duties of Humanity in Relation to the Global Water Cycle | |
| 自然资源勘探循环基金问题政府间工作组 | | Intergovernmental Working Group on the Revolving Fund for Natural Resources Exploration | |
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