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三角数
 三角数
cryptogr. triangular number
 | 据
 据
gen. as far as; so far as; by; cat-; cata-; datum

to phrases
三角数
cryptogr. triangular number
三角数
: 61 phrases in 18 subjects
Bridge construction3
Cartography1
Chemistry2
Construction1
Cryptography2
Engineering geology1
Explosives and Explosive Ordnance Disposal1
General1
Hydroelectric power stations2
Mathematics1
Metallurgy1
Securities1
Space1
Statistics3
Technology37
Telecommunications1
Water resources1
Wind Energy1

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