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三角函数 sānjiǎo hánshù
gen. trig function
hydroel.st. trigonometric function; trigonometrical function
tech. circular function
telecom. triangle function
三角 函数: 34 phrases in 7 subjects
Bridge construction2
Chemistry2
Construction1
Engineering geology1
Explosives and Explosive Ordnance Disposal1
Technology26
Wind Energy1