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梯段 tīduàn
tech.	flight; flight of stair (case); going (水平距离); stepway
矿的梯段 tīduàn
gen.	bench

梯段: 170 phrases in 14 subjects

Architecture	9
Automobiles	1
Coal	1
Construction	1
Explosives and Explosive Ordnance Disposal	26
General	9
Hydroelectric power stations	3
Life sciences	1
Metallurgy	3
Mining	1
Nautical	1
Polymers	2
Refrigeration	1
Technology	111