- 有效期 yǒuxiàoqī period of validitythe timeframe during which something is valid or effective; expiration date or shelf life of perishable goods
- 有效性 yǒuxiàoxìng effectivenessthe state or quality of being effective or valid; validity
- 行之有效 xíngzhīyǒuxiào effective in practiceeffective when put into practice; (of methods or measures) proven to work; tried and true
- 有效射程 yǒuxiàoshèchéng effective rangeThe maximum distance at which a weapon, such as a gun, artillery piece, or missile, can reliably and accurately hit its target.
- 有效数字 yǒuxiàoshùzì significant digitsthe digits from one to nine, as opposed to zero
- 有效措施 yǒuxiàocuòshī effective measureseffective measures; effective actions
- 有效负载 yǒuxiàofùzài payloadthe total weight or amount of cargo, passengers, or equipment that a vehicle or craft carries; the data in a packet or message that is the actual intended message content
- 经济有效 jīngjìyǒuxiào cost-effectivecost-effective; economical and efficient
- 有效期内 yǒuxiàoqīnèi within the validity periodwithin the period of validity; before the sell-by date
- 有效日期 yǒuxiàorìqī effective datethe date on which a contract, policy, or regulation becomes legally valid