出于对安全因素的考虑，公路有宽阔的车道和路肩、中央分隔带、界限、长长的出入口车道、为安全转弯而设计的弯道，以及限定数量的入口。

Built with safety in mind, the highways have wide lanes and shoulders, dividing medians, or barriers, long entry and exit lanes, curves engineered for safe turns, and limited access.

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但是，在决定关闭机场时并未考虑何为危险、隐性伤害和安全间的界限以及这三种级别如何随火山灰微粒类型与数量的变化而改变的因素。

But where the boundaries between danger, potential damage and safety lie, and how they vary with the type and number of ash particles, was not taken into account in the decisions to close airspace.

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当项目中数据仓库对象的数量接近上述界限时，如果通过用户界面执行重复加载，应该考虑这一点。

This should be considered when executing repeated loads via the user interface when the number of warehouse objects in the project approaches the limits described above.

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