SU868104A1
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Wind unit
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SU939816A1
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Wind pump set
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SU868175A2
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Centrifugal starting clutch
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SU890014A1
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Boiler unit
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SU780142A1
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Wind-electric plant
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SU762090A1
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Method of synchronizing the generator of wind-electric unit
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SU708068A1
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Wind wheel speed centrifugal governor
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SU832488A1
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Frequency-measuring device
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SU748030A1
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Wind wheel revolution-frequency hydraulic regulator
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SU684703A1
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Synchronous generator voltage regulator
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SU819664A1
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Conductivity apparatus
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SU649119A2
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Device for self-excitation of wind-electric equipment synchronous generator
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SU748029A1
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Apparatus for arresting wind wheel
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