抗弯 强度 : 51 phrases in 13 subjects |
Automobiles | 2 |
Bridge construction | 3 |
Chemistry | 1 |
Drilling | 2 |
Electric machinery | 2 |
Electronics | 3 |
General | 1 |
Hydroelectric power stations | 2 |
Mechanics | 1 |
Metallurgy | 3 |
Oil / petroleum | 3 |
Rail transport | 1 |
Technology | 27 |