variable mass
| dynamics
| variable mass | |
| bridg.constr. | 变质量 |
| dynamics | |
| avia. | 动力学特性; 动力转动部件 |
| busin. | 时效 |
| desert. | 演替 |
| dril. | 动力 |
| econ. | 动态学 |
| oil | 动态 |
| space | 动态 |
| sport. med. од. | 力学 |
| tech. | 运动学 |
| |||
| 变质量 | |||
|
variable mass : 7 phrases in 4 subjects |
| Aviation | 1 |
| Bridge construction | 2 |
| Physics | 1 |
| Technology | 3 |