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Standard meeting facilities and audio - visual equipment.
标准会议设备及音响系统。
youdao
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Visual inspection for the surface quality of equipment and weld seams.
目视检查设备和焊缝的外表面质量。
youdao
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Visual inspection for the surface quality of equipment and weld seams.
目视检查设备和焊缝的外表面质量。
youdao