strength classes(grades) of prestressed tendon

同义词释义

1)strength classes(grades) of prestressed tendon,预应力筋强度等级2)strength classes(grades of prestressed tendon),预应力筋强度等级3)prestrain,预应变4)prestress ring,预应力环5)pre-strain,预应变量6)pre-strain,预应变7)prestress,预应力8)pre-stress,预应力9)prestress ring,预应力圈10)pre-deformation,预应变量