cast iron manhole cover 铸铁人孔盖板
portable manhole cover 便携式人孔盖
sunk manhole cover 埋入式人孔盖
hinged manhole cover 铰链式人孔盖
tight manhole cover 紧密窑井盖 ; 检查井密盖
Illuminated Manhole Cover 安全井盖
flush manhole cover 平置式人孔盖 ; 平板式人孔盖
raised manhole cover 升高人孔盖
With a summary on the existing problems of inspection wells in urban road,it analyzes causes of diseases surrounding the manhole cover of inspection wells from five aspects. It discusses specific solutions in light of four diseases.
总结出城市道路检查井存在的问题,从五方面分析了检查井井盖周围病害原因,针对四种病害探讨了具体的解决办法,从而减少城市主干道检查井周围病害,保证道路的完整性和稳定性。
参考来源 - 浅析检查井在城市道路中的病害·2,447,543篇论文数据，部分数据来源于NoteExpress
Cast iron manhole cover anti impact resistance, easy rupture.
铸铁检查井盖不耐冲击，易破裂。
Cast iron manhole cover of good quality is to see its toughness and hardness.
质量好的铸铁井盖是要看其韧度和硬度的。
Resin composite manhole cover is made of polymer composite materials, no recovery value.
树脂复合井盖是由高分子复合材料制成，没有任何回收价值。
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