| |||
triangular system; trigonometric system; trigonometrical system | |||
camming; cam system |
三角 系统 : 27 phrases in 11 subjects |
Air defense | 1 |
Automobiles | 1 |
Aviation | 3 |
Business | 1 |
Earth sciences | 3 |
General | 1 |
Hydroelectric power stations | 1 |
Scientific | 1 |
Technology | 6 |
Telecommunications | 2 |
Textile industry | 7 |