If the hose of a vacuum cleaner has a hole in it, the duct tape will come to rescue.
如果真空吸尘器上面的软管有个洞，管道胶带就派上用场了。
2
The prestressing ductvacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures.
预应力管道真空辅助压浆工艺是提高后张预应力混凝土结构安全度和耐久性的有效措施。
3
The prestressed duct was a technical measure of duct grouting by vacuum method.