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。
The prestressing duct vacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures.
采用塑料波纹管作为预应力管道是配套真空辅助压浆技术的技术措施。
The prestressed duct was a technical measure of duct grouting by vacuum method.
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