For grouting, we recommend the usage of un - sanded grouts.最后上填缝剂, 我们建议使用不含颗粒的填.Research progress on accelerated corrosion test method corrosion protecveness of the post tensioning grouts is reviewed.综述了近期国内外在后张预应力结构灌浆材料...
All similes and allegories concerning her began and ended with birds.要比仿她,要模拟她,总得以鸟类始,还得以鸟类终.The heroes in allegories are usually animals.寓言中的主人公通常是动物.Most millefleurs tapestries show secular scenes or allegories.许多百花挂毯的...