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.
我国由于长期受计划经济、控制手段和方法的影响，建筑项目的大部分都是在成本超支、工期延长的情况下完成的。
In the Chinese economy, the long-term exposure to plan the influence of control means and methods, building and construction projects mostly in cost overruns, complete extension of time.
工期索赔的目的首先是延长工期，避免遭受工期延误罚款；其次是给经济索赔的合法性奠定合同基础。
The object of claim for extension of time is to extend the construction time, to avoid the penalty for delay, and then provide the contract foundation for legality of financial claim.
少数项目属性值的估算没有变化，但工作量估算随工期的延长而增加，不符合估算模型的精神。
There is no change of attribute value in a few projects' estimation, but its effort grows with schedule delay. This fails to be conformant with the intended use of the organization's estimation model.
在后续施工过程中，随着路基高度的增加路基不再被压密，导致固结过程所需的时间延长，工期滞后。
Consequently, the thick filling does not consolidate in the following process of construction, which results in the delay of completing.
在后续施工过程中，随着路基高度的增加路基不再被压密，导致固结过程所需的时间延长，工期滞后。
Consequently, the thick filling does not consolidate in the following process of construction, which results in the delay of completing.
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