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单词
very low frequency electromagnetic method
释义
very low frequency electromagnetic method
Encyclopedia
理学
甚低频电磁法
释
very low frequency electromagnetic method; VLF-EM
甚低频电磁法
一种以大功率甚低频通讯电台所发射的电磁波为场源,通过在地表或空中测量电磁场的空间分布,获得地下数十米深度范围内电性异常信息的一种被动源电磁勘探方法。
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reliability acceptance test
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reliability-based design method
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reliability block diagram
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