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- asynchronous electric traction 1
- asynchronous electric traction drive 1
- asynchronous engine 2
- asynchronous generator 2
- asynchronous motor 4
- asynchronous traction drive 1
- asynchronous traction electric drive 1
- asynchronous traction motor 2
- athletic orientation 1
- ATM 1
- atmospheric optical communication lines 1
- attached equipment 1
- attention 3
- attestation 1
- attracting 1
- attracting innovation 1
- attraction of investments 1
- audience having a special purpose 1
- audio frequency track circuit 3
- audit 3