... drop-type multiple shot magnetic survey 投入式多点磁力测斜仪 multiple-shot survey 多点照相测斜 magnetic multiple shot survey instrument 磁性多点照相测斜仪 ...
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多点测斜 multiple survey; multiple-shot survey; multishot survey 多点测斜仪 multiple shot tool; multiple-shot instrument; multishot instrument .
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