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标准贯人试验
hydroel.st. standard penetration test (SPT)
tech. standard penetration test
标准贯人试验在土层钻孔中，利用重63. 5kg 的锤击贯人器，根据每贯人30cm所需锤击数来判断土的性质,估算土层强度的一种动力触探试验
expl. standard penetration test
标准贯人试验: 2 phrases in 1 subject
Hydroelectric power stations2

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