Because of the S-G water frequency band being used, it is possible to fast and nondestructive measure compaction of subgrade without water content measuring.
运用S—G水滞频段，无需测量土的含水量，就能快速、无损、定量的测定土的压实度。
Because of the S-G water frequency band being used, it is possible to fast and nondestructive measure compaction of subgrade without water content measuring.
运用S—G水滞频段，无需测量土的含水量，就能快速、无损、定量的测定土的压实度。
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