类比估算是专家判断的一种形式。
本文提出一种零部件的裂纹形成寿命的类比估算方法。
A method for crack initiation life prediction of components is presented.
只有当前活动与以前活动实际上相似，而不只是在表面上相似，并且准备估算的项目团队成员具备必要的专业知识时，类比估算才最为可靠。
Analogous estimating is most reliable when the previous activities are similar in fact and not just in appearance, and the project team members preparing the estimates have the needed expertise.
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