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侧扫声呐
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侧扫声呐
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side scan sonar
侧扫声呐
通过声学换能器向载体两侧(或一侧)斜下方发射特定频率的扇形超声波束,探测海底地貌和水下物体的设备。又称旁侧声呐或海底地貌仪。
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voluntary service
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volunteer at library
Volunteer Drivers and Mechanics from Nanyang
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Volunteers’ Committee of Chinese Museums Association
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volute of fluid machinery
volute of pump
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Volvo Ocean Race
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vomer bone
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