工效降低索赔是一种比较特殊的索赔，工程实践中一般只要求工期延长，不要求费用补偿。
As a kind of special claim, claims of loss efficiency usually claimed for extension of time, and seldom for financial compensation.
工效降低索赔是一种比较特殊的索赔，工程实践中一般只要求工期延长，不要求费用补偿。
As a kind of special claim, claims of loss efficiency usually claimed for extension of time, and seldom for financial compensation.
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