coefficient of variation of grade
interdecadal variation and interannual variation
Seasonal variation of diurnal variation
1860 MPa grade PC strand
1st grade clean operating room
Ⅱb type gem grade diamond
3(superscript rd) Grade mathematics
Ⅲ grade hot-rolled ribbed bar
400 MPa Ⅲ Grade Reinforced Bar
400 MPa Ⅲ grade reinforcing steel
400 MPa grade ultrafine gaind steel