因为每个计划项增加的字符串长度总数大体相同，所以随后的稳定期比例可以作为重新设置底层数组大小的参考指标。
Because each plan item increases the total string length by roughly the same amount, the ratio of subsequent plateaus provides an indicator of the resize factor for the underlying array.
这确保了指标透过我总是对他们是有卡，而且总是空值移动到数组的末尾。
This ensures that the indexes up through I always have CARDS in them, and that the null values are always moved to the end of the array.
文章依据风险系统理论，构建区域环境风险区划的层次结构模型与指标体系，提出区域环境风险综合指数由风险源危险性指数、控制机制有效性指数、受体易损性指数组成。
It was proposed that comprehensive index of regional environmental risk consists of the danger index of risk source, validity index of control mechanism and vulnerability index of risk receptor.
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