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电磁超声内检测器
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电磁超声内检测器
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工学
电磁超声内检测器
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electromagnetic ultrasonic internal detector
电磁超声内检测器
由一个放置在管道内表面的磁场中的线圈构成,用来检测交变电流通过线圈在管壁中产生感应电流,从而产生洛仑磁力(该力由磁场控制)超声波的装置。又称电磁声学传感器装置。
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opera stage in Taishan Palace of Fuzhou
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opera suit of a jacket with lining and trousers
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Opera Theaters of Bukit Mertajam, Penang
operatic actor’s waist tag granted by Shengping Bureau of Qing Dynasty
operatic brick engravings at City God Temple of Chengguan Town, Shengzhou City
operatic carvings at Jiuxiang Chastity and Filial Piety Stone Archway
operatic ceremonial weaponry of the Qing Dynasty in Lingbao City
operatic composition
operatic copperplate etchings of the Qing Dynasty
operatic costumes collected at the Qing court
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operatic engravings at Mirror-Hanging Tower of Sheqi Shanxi-Shaanxi Guild Hall
operatic facial painting frescoes at Jishui Lord Yu Temple
operatic facial paintings of China's ethnic minorities
operatic film
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更新时间:2026/8/5 12:44:18