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...
开始倒计时之前还有3件事要做。There were three more things to do before countdown.诺丁山狂欢节已经进入了最后几个小时的倒计时。The countdown to the Notting Hill Carnival is in its final hours.全世界都在倒计时迎接新千年的到来.The whole world was counting down to the new mill...