created sense approved 时效/時效 · shíxiào · aging
时效 / 時效
shíxiào
aging
a metallurgical process where the physical properties of a metal or alloy change over time, often used to increase strength
通过人工时效处理，这种铝合金的硬度得到了大幅提升。
noun
created sense approved 时效/時效 · shíxiào · prescription
时效 / 時效
shíxiào
prescription
a legal time limit or period after which a claim, right, or liability becomes invalid or unenforceable
超过了法定诉讼时效，原告将丧失胜诉权。
noun
created sense approved 时效/時效 · shíxiào · timeliness
时效 / 時效
shíxiào
timeliness
the quality of being timely or the specific period during which something remains valid or effective
这些新闻信息过了几个小时就会失去时效。
noun