前言：沟槽式安装作为一种新工艺在消防管道中应用，从工程施工管理的三大目标(质量、进度、成本)分析应用的合理性。
The essay analyses the rationality of groove installation in the view of quality, construction and cost as a sort of new techniques applied in fire pipeline.
把改善工作环境、提高工作效率，减轻员工体力、减少工作时间、降低运营成本，增加经营效益作为建构便捷式管理模式的基本目标。
The basic goals of the proposed management mode are to improve work environment, raise working efficiency, reduce manual labor and working time, cut down operational costs, and increase revenues.
分辨率测试装置中采用非球面设计反射式平行光管，形成无穷远紫外分辨率目标，不仅减少了设计和加工成本，而且使紫外能量得到了最大程度的利用。
We also design a novel UV collimator which makes infinite UV testing targets. It can reduce the difficulty of optical design and the machining cost, and utilize UV energy at maximum extent.
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