- 操作系统 cāozuòxìtǒng operating system
- 信息系统 xìnxīxìtǒng information system
- 神经系统 shénjīngxìtǒng nervous system
- 生态系统 shēngtàixìtǒng ecosystem
- 系统性 xìtǒngxìng systematic
- 子系统 zǐxìtǒng subsystem
- 消化系统 xiāohuàxìtǒng digestive systemthe biological system responsible for the intake, breakdown, and absorption of food, including the gastrointestinal tract and accessory organs
- 专家系统 zhuānjiāxìtǒng expert system
- 循环系统 xúnhuánxìtǒng circulatory system
- 呼吸系统 hūxīxìtǒng respiratory system
- 开放系统 kāifàngxìtǒng open system
- 端系统 duānxìtǒng end system
- 太阳微系统公司 Tàiyáng Wēixìtǒnggōngsī Sun Microsystems
- 卫星定位系统 wèixīngdìngwèixìtǒng GPSGPS (Global Positioning System)
- 卫星导航系统 wèixīngdǎohángxìtǒng sat-navsatellite navigation system
- 反导系统 fǎndǎoxìtǒng anti-missile systema system designed to detect, track, intercept and destroy incoming missiles
- 命名系统 mìngmíngxìtǒng nomenclaturesystem of nomenclature
- 复杂系统 fùzáxìtǒng complex system
- 宙斯盾战斗系统 Zhòusīdùn Zhàndòu Xìtǒng Aegis Combat SystemAegis Combat System (weapons system developed for the US Navy)
- 开放式系统 kāifàngshìxìtǒng open system
- 开放系统互连 kāifàngxìtǒnghùlián OSIOpen Systems Interconnection, a conceptual model that characterizes and standardizes the communication functions of a computing system
- 排泄系统 páixièxìtǒng drainage systema system of pipes, ditches, or channels used for removing surface or waste water from an area
- 支系统 zhīxìtǒng subsystem
- 新风系统 xīnfēngxìtǒng fresh air systema ventilation system that purifies outdoor air during intake
- 武器系统 wǔqìxìtǒng weapon system
- 泌尿系统 mìniàoxìtǒng urinary system
- 淋巴系统 línbāxìtǒng lymphatic system
- 环球定位系统 huánqiúdìngwèixìtǒng GPSGPS (Global Positioning System)
- 生殖系统 shēngzhíxìtǒng reproductive system
- 系统角色 xìtǒngjuésè NPCnon-playable character (in a role-playing game)
- 线性系统 xiànxìngxìtǒng linear system
- 网络操作系统 wǎngluòcāozuòxìtǒng network operating system
- 网络管理系统 wǎngluòguǎnlǐxìtǒng network management systema platform consisting of software and hardware tools used to monitor, control, and manage components within a computer network
- 网路作业系统 wǎnglùzuòyèxìtǒng network operating system
- 自主神经系统 zìzhǔshénjīngxìtǒng autonomic nervous system
- 自主系统 zìzhǔxìtǒng autonomous system
- 自律神经系统 zìlǜshénjīngxìtǒng autonomic nervous system
- 软件系统 ruǎnjiànxìtǒng software system
- 输入系统 shūrùxìtǒng data entry systema structured framework or specialized software used for the systematic recording and processing of information
- 边缘系统 biānyuánxìtǒng limbic system
- 通讯系统 tōngxùnxìtǒng communication system
- 金融系统 jīnróngxìtǒng financial system
- 销售时点情报系统 xiāoshòushídiǎnqíngbàoxìtǒng point of salepoint of sale system
- 预警系统 yùjǐngxìtǒng early warning system
- 严重急性呼吸系统综合症 yánzhòngjíxìnghūxīxìtǒngzōnghézhèng SARSsevere acute respiratory syndrome (SARS)
- 中枢神经系统 zhōngshūshénjīngxìtǒng central nervous systemcentral nervous system (CNS)
- 传动系统 chuándòngxìtǒng transmissiona mechanical system used to transmit power from a power source, such as an engine, to the components that perform work
- 作业系统 zuòyèxìtǒng operating systemoperating system (Taiwan usage)
- 供油系统 gōngyóuxìtǒng fuel systemfuel supply system
