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battery operation | |||
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battery-operated; battery-powered; battery-driven | |||
battery operated; self-powered |
batteriebetrieben: 13 phrases in 8 subjects |
Communications | 1 |
Computers | 1 |
Electronics | 1 |
Information technology | 3 |
Microelectronics | 1 |
Natural resourses and wildlife conservation | 1 |
Optics branch of physics | 1 |
Transport | 4 |