
Bs 3680 Measurement Of Liquid Flow In Open Channels Part 3e: Measurement Of Discharge By The Ultrasonic (acoustic) Method (iso/dis 6416)
出版:British Standards Institution

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Bs 3680 Measurement Of Liquid Flow In Open Channels Part 3e: Measurement Of Discharge By The Ultrasonic (acoustic) Method (iso/dis 6416)
出版:British Standards Institution
专家解读视频