Prevention and maintenance 预防养护; 防治; 维护 收藏 administration of maintenance equipment 养护设备管理 收藏 .
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This paper analyzes causes of four familiar cracks of asphaltum concrete pavement, and brings forward relevant prevention and maintenance method.
系统地对沥青混凝土路面四种常见裂缝产生的原因进行了分析，同时也提出了相应的预防与治理措施。
This article gives some discussion on the prevention and maintenance of the straight rails with alternative uneven side wearing in the heavy-load and fast-speed section.
文中对重载快速区段直线钢轨交替不均匀侧磨的预防与整治作一些探讨。
Article 24. Administrations in charge of the production and maintenance of motor vehicles and vessels should include prevention of their exhaust pollution in the respective sectional quality control.
第二十四条机动车船生产、维修管理部门应当将机动车船排气污染防治纳入行业质量管理。
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