First, introduce the component of cost change.

首先介绍变更计价的组成部分。

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Cost control is an important component of cost management of the project, of which the most important implementation is to integrated control costs and the progress of the construction.

成本控制是项目成本管理的一个重要环节，在项目成本管理实施中最重要的控制要点就是对成本与进度的集成控制。

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Using a component can radically reduce the cost and time to deliver a certain set of functionality.

使用一个组件可以从根本上降低成本和发布一组特定功能的时间。

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Aside from the retailer's gross margin of 35%, the biggest component of cost is labor: Even when a Mille is 99% completed, the tiniest flaw can cause it to be rejected.

FORBES: Magazine Article

The result was that the cost per mile for consumers on the ethanol component of their fuel was double or even triple the cost of the gasoline component.

FORBES: Washington's Foolish Fuel Policy

The study provides "strong evidence that text message reminders can be an effective, low-cost component of such a package".

BBC: Text messages boost malaria care