lower core
| support structures
| lower core | |
| oil | 下地核 |
| support structure | |
| archit. | 支承 结构 |
| oil | 支撑结构 |
| plast. | 承载结构 |
| railw. | 支持装置; 支护结构; 支护纟吉构 |
| space | 支持 结构 |
| steel. | 支撑钢结构 |
| tech. | 下部结构; 支承结构 |
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| 下地核 | |||
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lower core : 21 phrases in 8 subjects |
| Aviation | 1 |
| Electronics | 9 |
| General | 1 |
| Mechanic engineering | 1 |
| Nuclear and fusion power | 2 |
| Nuclear physics | 2 |
| Scientific | 1 |
| Technology | 4 |