正三棱锥
- 网络regular triangular pyramid; normal triple prism; D-ABC
正三棱锥
正三棱锥
regular triangular pyramid
外贸中人--工程制图 (中英文术语) ... 棱锥 pyramid 正三棱锥 regular triangular pyramid 正四棱锥 right square pyramid ...
normal triple prism
三棱锥,triangular... ... ) triedge-cone 三棱锥面 ) normal triple prism 正三棱锥 ) pyramid shaped tea-bag 三棱锥袋 ...
D-ABC
正三棱锥\(D-ABC\)中 , 侧棱长为8 , 底面边长为4 , 过\(A\)作截面\(AEF\)交\(DB\)于\(E\), 交\(DC\)于\(F\), 则\(\triangle AEF\)周...