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90 efficiency francis turbine generator
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2025-07-25 00:29:28
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2025-07-25 00:29:28
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2025-07-25 00:29:28
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2025-07-25 00:29:28
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2025-04-15 16:34:49
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2025-04-15 16:35:48
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2025-04-15 16:36:42
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.pd-container { font-family: Arial, sans-serif; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; line-height: 1.6; } .pd-heading { font...
2025-07-29 19:14:33
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2025-04-15 16:38:01
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