second-order differential
| collision
| second-order differential abbr. | |
| avia. | 二阶差分; 二阶导数 |
| collision abbr. | |
| drag. | 撞船 |
| interntl.trade. од. | 冲突 |
| met. | 打击 |
| racing | 碰车; 撞车 |
| row. | 互撞; 聚集; 靠岸 |
| space | 截击 |
| sport. | 冲撞 |
| |||
| 二阶差分; 二阶导数 | |||
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second-order differential : 8 phrases in 6 subjects |
| Aviation | 2 |
| Chemistry | 1 |
| Cryptography | 1 |
| Electronics | 1 |
| Space | 1 |
| Technology | 2 |