三心
三心三心(的)[sān xīn]1.■three-core; three-centered
常用词组1.■三心插塞 three-pin plug;2.■三心拱 basket-handle arch; multicenter arch;3.■三心花瓣拱 trefoil arch;4.■三心平圆拱 {建} three-centered arch;5.■三心塞绳 three-way cord;6.■三心椭圆（仿椭圆）pseudo-ellipse;7.■三心圆拱{建} three-centred arch;8.■三心装饰拱 {建} false ellipse
