Provisions for concrete, reinforcement and prestressing steel are given in Section 3 or the relevant Product Standard.
混凝土，钢筋和预应力钢筋的规定见第3部分或有关产品标准。
2
As to concrete structure of external prestressing, for it affects security and trustiness of structure, the antisepsis of external prestressing cable is extremely important.
对于体外预应力混凝土结构，预应力索的防腐十分重要，它关系到结构的安全性和可靠度。
3
At the same time, destructiveness test by loading on simple supporting prestressingconcrete beam and gathering work of the vibration signal were carried on.