这种高堆积密度说明了水泥的高强度和稳定特性，使其成为隧道和桥梁等建筑物的理想材料。
This high packing density accounts for the strength and stability of cement, which makes it useful for structures like tunnels and Bridges.
面层抹得很厚，用上高标号水泥，高强度砂浆，这就错了。
Wipe the surface very thick, use high-grade cement mortar, high strength, this is wrong.
针对目前水泥浆封堵炮眼存在的问题，研制开发了不留塞高强度炮眼封堵剂FD-2。
The paper develops embrasure plugging a-gent(FD-2) with high strength according to the present problem that cement plugs embrasure.
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