| |||
grade of cement; strength grading of cement | |||
strength of cement | |||
cement brand | |||
cement mark; cement grade | |||
cement strength number |
水泥标 号 : 24 phrases in 8 subjects |
Bridge construction | 5 |
Chemistry | 1 |
Construction | 1 |
Engineering geology | 2 |
General | 1 |
Hydroelectric power stations | 2 |
Metallurgy | 2 |
Technology | 10 |