alternate key

A container can either support strings as its keys, like the root object itself, or can use integers as an alternate key system instead.

容器可以支持将字符串作为其键值，就像根对象本身一样，或者可以使用整数作为备选键值系统。

The retrieval of a data record in an indexed file by the primary ( or optionally, alternate) key within the data record.

在索引文件中，通过数据记录中的主要关键字或可选关键字进行数据记录的检索的一种方法。

Th e concentration of alternate stress is a key factor of fatigue destruction.

而交变应力集中是疲劳破坏的一个关键因素。

Stability of consequent bedding rock slope is evaluated by the stage of displacement alternate, which is got by analyzing the displacement alternate process of key monitoring point and spatial displacement distribution status and suggestion value of safety factors when whole displacements are consistency.

从关键点位移变形状态和空间位移分布状态，结合位移较一致时边坡安全系数建议值，综合分析边坡所处的变形阶段、变形趋势，以此来评价边坡的稳定性。