封堵材料 meaning in English
plugging material
Examples
- Performance requirements and test methods for fire - proof sealing materials
防火封堵材料的性能要求和试验方法 - Study of grouting plug - back material for karst crevice - water of xinqiaomine
新桥矿岩溶裂隙水注浆封堵材料的研究
plugging material