该文主要阐述伸缩装置的安装和在桥梁运营中维修和养护，以保证伸缩装置正常使用和延长其耐久性。
The paper expounded installation of expanded joist and maintenance in the operation of bridge, to ensure natural use of expanded joist.
摘要：文章针对就公路桥梁伸缩缝装置的安装工艺、质量控制等进行了分析与探讨。关键词：桥梁；伸缩缝；施工技术；质量控制。
Abstract: the article in view of the highway bridge expansion joint device installation process, quality control, etc are analyzed and discussed.
本文对目前常用桥梁伸缩装置的破坏进行了分析，说明了进一步从安装工艺上进行优化改进的方法，并提出了相应的防治措施。
The destruction of bridge shrinkage-device is analyzed in this paper, a way of opitive progress from installing technology is also given. Then some corresponding preventive methods are analyzed.
在安装通风装置、脱排油烟机、热水器等时，使用这种带接头联体的塑料伸缩管在许多方便之处。
The plastic extension pipe with a joint coupling body can bring convenience for the installation of a ventilator, a range hood, a water heater, etc.
在安装通风装置、脱排油烟机、热水器等时，使用这种带接头联体的塑料伸缩管在许多方便之处。
The plastic extension pipe with a joint coupling body can bring convenience for the installation of a ventilator, a range hood, a water heater, etc.
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