- 高质量 gāozhìliàng high qualityof a high standard; superior quality
- 质量管理 zhìliàngguǎnlǐ quality managementquality management or quality control (QC)
- 国家质量奖 guójiāzhìliàngjiǎng National Quality Awardan official award presented at the national level to organizations or products that demonstrate excellence in quality management
- 国家质量监督检验检疫总局 guójiāzhìliàngjiāndūjiǎnyànjiǎnyìzǒngjú AQSIQGeneral Administration of Quality Supervision, Inspection and Quarantine; a former ministerial-level agency of the People's Republic of China
- 服务质量 fúwùzhìliàng service qualityquality of service; QOS
- 环境质量 huánjìngzhìliàng environmental qualityThe state of an environment, reflecting the extent to which its overall condition or specific elements are suitable for human survival and socio-economic development; in Taiwan, usually called [[环境品质|環境品質|huan2 jing4 pin3 zhi4]]
- 生存质量 shēngcúnzhìliàng quality of lifethe general well-being of individuals and societies, outlining negative and positive features of life; often used in a medical or sociological context
- 生活质量 shēnghuózhìliàng quality of lifeAn individual's physical, mental, and social well-being and external living conditions, often specifically referring to well-being in the context of health and medical treatment
- 空气质量 kōngqìzhìliàng air qualityThe level of pollutants present in the air, used to measure how clean or polluted the atmosphere is.
- 临界质量 línjièzhìliàng critical massthe minimum amount of fissile material needed to maintain a nuclear chain reaction; the size or amount needed to maintain a venture or process
- 质量块 zhìliàngkuài massa physical mass or body, specifically in the context of physics or mechanical engineering
- 质量数 zhìliàngshù mass number; nucleon number; atomic massThe total number of protons and neutrons (nucleons) in an atomic nucleus; used to distinguish between different isotopes of an element
- 质量标准 zhìliàngbiāozhǔn quality standardStandard for the quality of goods or services; quality control criteria
- 质量检查 zhìliàngjiǎnchá quality inspectionAn inspection or check performed to ensure that products or services meet required standards
- 质量监督 zhìliàngjiāndū quality supervisionthe process of monitoring and inspecting products or services to ensure they meet established standards and requirements
- 质量监督检验检疫 zhìliàngjiāndūjiǎnyànjiǎnyì quality supervision inspection and quarantinequality supervision, inspection, and quarantine; often used in the context of government administration and standards regulation
- 质量监督检验检疫局 zhìliàngjiāndūjiǎnyànjiǎnyìjú AQSIQGeneral Administration of Quality Supervision, Inspection and Quarantine, a former ministerial-level agency under the State Council of the People's Republic of China
- 身体质量指数 shēntǐzhìliàngzhǐshù body mass indexbody mass index; a measure of body fat based on height and weight
- 质量保障 zhìliàngbǎozhàng quality assurancequality assurance (QA); the process of ensuring that a product or service meets specific requirements
- 全自动高质量翻译 quánzìdònggāozhìliàngfānyì FAHQTFully automatic high-quality translation; a standard of machine translation that produces text equivalent to human translation without human intervention.
- 原子质量 yuánzǐzhìliàng atomic massthe mass of an atom of a chemical element expressed in atomic mass units