差异分析是作业成本管理中重要的决策支持工具。
Variance analysis is an important decision support tool of activity-based cost management.
该系统使得飞机人工增雨作业的指挥决策系统化，可减少盲目作业带来的损失。
It has been systematized for operation control and can decrease the losing of blind operation.
该系统使得飞机人工增雨作业的指挥决策系统化，可减少盲目作业带来的损失。
It has been systematized for operation control and can decrease the losing of blind operation.
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