活动属性包括活动编码、先行活动、后续活动、逻辑关系、提前量和滞后量、资源需求、强制日期、约束条件和假设条件等。
Activity attributes include activity codes, predecessor activities, successor activities, logical relationships, leads and lags, resource requirements, imposed dates, constraints, and assumptions.
活动属性包括：活动编码、紧前活动、紧后活动、逻辑关系、时间提前量和时间滞后量、资源要求、强制日期、制约因素和假设条件。
Activity Attributes include Activity Codes, predecessor activities, successor activities, Logical Relationships, Leads and Lags, resource requirements, Imposed Dates, Constraints, and assumptions.
您当然可以按照如排名或登记日期强制进行排序。
You could, of course, impose an order such as rating or enroll-date.
自1979年以来，联邦法律已经作出强制规定药物制造商都放在处方药和非处方药的到期日期。
Since 1979, federal law has made it mandatory for drug manufacturers to place an expiration date on both prescription and over-the-counter medications.
进度里程碑。顾客或实施组织可能识别里程碑，并为这些里程碑规定强制性日期。这些日期可以当做进度制约因素看待。
Schedule milestones. The customer or performing organization can identify milestones and can place imposed dates on those schedule milestones. These dates can be addressed as schedule constraints.
然而，截止日期快到了，如果必要的话，我们将有义务强制执行该议题。
However, the deadline is fast approaching, and we will be obliged to force the issue if necessary.
然而，截止日期快到了，如果必要的话，我们将有义务强制执行该议题。
However, the deadline is fast approaching, and we will be obliged to force the issue if necessary.
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