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不渗透层
dril. impermeable formation; impermeable rock; impervious bed; impervious formation; impervious rock
met. impermeable bed; impermeable layer
tech. impenetrable layer
不渗透透水层
met. impermeable layer
不渗 透 层
: 25 phrases in 5 subjects
Bridge construction2
Drilling4
Metallurgy2
Oil / petroleum8
Technology9

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