需求,必要条件: requirements必要条件系列: fr family of requirement充分必要条件: necessary and sufficient conditions附加必要条件: additional necessary condition具备必要条件: satisfy the essential requirements充分必要条件 充要条件: necessaryandsufficientcondition报告书的必要条件: requirement of report单元丢失必要条件: clr cell loss requirements附加的必要条件: additional neccessary condition; additional necessary condition健康保险必要条件: mandatory health insurance requirement控制必要条件要求: control requirements防护的必要条件, 安全条件: safeguard requirement犯罪的必要条件, 犯罪要件: requisites of a crime获得许可的必要条件资格: certification requirements绝对必需, 必要条件, 不可缺: sin qua non数据自动化的必要条件: dar data automation requirement证券股票注册的必要条件: listing requirements必要条款: keepwell成功改善员工表现的必要条件: the necessary requirements to improve employees’ performance successfully清澈、不混浊是正常酒的必要条件。: brilliant充要条件: necessary and sufficient conditions; sufficient and necessary condition非主要条件: non-e ential stipulation; non-essential stipulation主要条件: significant condition成功的重要条件: be half the battle必要损失: necessary loss必要水份: essential water