短語(yǔ)詞組短語(yǔ)prestress tensioning equipment 預(yù)應(yīng)力張拉設(shè)備past -tensioning prestress 后張法預(yù)應(yīng)力post tensioning prestress 后張預(yù)應(yīng)力post -tensioning method prestress structure 后張法預(yù)應(yīng)力結(jié)構(gòu) 返回 prestress tensioning