Precondition Required要求先决条件;所需的先决条件
isehemic precondition即所谓缺血预处理
chemical precondition化学预处理
Resource Precondition资源预分配
development precondition发展的必要条件
precondition storage预贮
hypoxia precondition缺氧预处理
precondition matrix预条件矩阵
N-COUNT（可数名词） If one thing is a precondition for another, it must happen or be done before the second thing can happen or exist. 先决条件 [正式]
They have demanded the release of three prisoners as a precondition for any negotiation.
他们要求释放3名囚犯作为谈判的先决条件。