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確保 ichi1 news1 nf02 (かくほ); 持続 ichi1 news1 nf08 (じぞく); 物腰 news2 nf29 spec2; 保守 ichi1 news1 nf02 (hoshu) | |||
保留 (ほりゅう) |
maintien : 14 phrases in 7 subjects |
Automatic control | 2 |
Electric traction | 1 |
Electronics | 3 |
Semiconductors | 1 |
Telecommunications | 4 |
Thermal Energy | 2 |
Vacuum tubes | 1 |