strength bar造句

• Pre - stress steel structure , a new type of structure in which combine pre - stressed with steel structure . adding some high strength bar in steel structure , and forcing these bars pre - stress can improve the structure capability , reduce the structure weight
  预应力钢结构是一种将预应力与钢结构相结合的新型结构，就是在钢结构中增加某些高强度杆件，并且对这些杆件施加预应力，使其达到改善结构性能，降低结构自重等作用。