机会利益具有时效性、不确定性。
这里有一个主要差别：必须注意时效性。
There is one big difference here: We have to be careful about staleness.
这不仅仅是时效性的问题。
每个数学模型都有时效性。
告诉自己这种焦虑是可掌握而且是有时效性的。
Show yourself that this anxiety is manageable and time-limited.
供应链管理跨越企业界限，具有集成性和时效性。
Supply chain Management breaks the boundary of a single enterprise.
争议的信息必须是收集起来代价昂贵并且具有时效性。
The information in question must be expensive to gather and time sensitive.
医院信息的主要特征是：等级性、时效性和价值性。
The main feature of hospital informational are grade property. aging property and worth property.
目的分析阶梯式健康教育的时效性，并讨论其临床意义。
Objective To study the effect of stair healthy education and its clinical significance.
目的研究战伤诊断数字化方法，以提高战伤救治的时效性。
Objective To study the digital methods in diagnosis of war wound.
报告的时效性十分关键，没有关联度的评估数据只具备很少价值。
Timing of the report is vital. Without a point of reference.
报告的时效性十分关键，没有关联度的评估数据只具备很少价值。
Timing of the report is vital. Without a point of reference.
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