 |
| |||
| 凹み spec1 (くぼみ); 窪み ichi1 (くぼみ) | |||
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| 空しい ichi1; 虚しい | |||
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| 空っぽ ichi1 news2 nf27 | |||
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| 真空 news1 nf19 (shinkū) | |||
|
creux : 15 phrases in 11 subjects |
| Antennas and waveguides | 1 |
| Electric motors | 1 |
| Electric traction | 2 |
| Electricity generation | 1 |
| General | 1 |
| Isolation | 1 |
| Magnetics | 1 |
| Mathematics | 3 |
| Power lines | 2 |
| Sound recording | 1 |
| Superconductivity | 1 |