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- 冬季施工砼保护层最小厚度Minimum thickness of concrete protective layer in construction in winter
- 保护to defend
- 连端硫化金属法兰,外有石棉保护层。With sulfuration metal flange and asbestos covering layer.
- 层layer
- 被保护层突出危险性评价技术的研究Study on Assessment Technique for Outburst Hazard of Protected Seam
- 保护模式protected mode
- 一层layer
- 不留保护层全断面预裂爆破在坝基开挖中的运用Application of Full Face Blasting Without Leaving Protective Covering in the Construction of Dam Foundation
- 保护的lee
- 多层multilayer
- 环境保护protect the environment
- 单层monolayer
- 三层three-layer
- 保护措施safeguard
- 第一层first floor
- 保护装置protector
- 内层lining
- 继电保护relay protection
- 薄层folium
- 保护者protector
