strength grading of concrete
英 [streŋθ ˈɡreɪdɪŋ ɒv ˈkɒŋkriːt]
美 [streŋθ ˈɡreɪdɪŋ əv ˈkɑːŋkriːt]
【化】混凝土标号
双语例句
- The enhancement coefficients of dynamic bending strength of full grading concrete beams are greater than those of wet-screened concrete, under the given condition;
一定条件下全级配的混凝土梁的动弯拉强度增强系数高于湿筛混凝土梁的动弯拉强度增强系数；