 |
主脊
| 梁
| 主脊 | |
| tech. | backbone; principal crest |
| 梁 | |
| geogr. | ridge |
| hydroel.st. | girder |
| oil transp. | beam; girder; joist |
| skydive. | boom |
| space | spar |
| |||
| backbone; principal crest | |||
|
主脊 : 5 phrases in 3 subjects |
| Animal husbandry | 2 |
| Earth sciences | 1 |
| Technology | 2 |
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