underwater testing and measuring instruments
Surveying and geodetic instruments 测绘，测地学仪器 Underwater testing and measuring instruments 水下检测仪 Drawing and mathematical instruments 绘图和数学仪器 ..
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underwater testing and measuring instruments
水下测试和测量仪器
以上为机器翻译结果，长、整句建议使用 人工翻译 。