ball catch：彈弓波子

alignment strip --------------------斜鎖 | ball catch ---------------------彈弓波子 | bridge piece ------------------水口鐵

ball plunger：彈弓波子

Running ejector pin 水口彈釘 | Ball plunger 彈弓波子 | Taper wedges 閘方

hanging spring balance：彈弓秤植物農作

57398彈子盤交通汽車機件wheel ball bearing | 57399彈弓秤植物農作hanging spring-balance | 57400彈孔運動射擊bullet hole

Steven Vogel , 1998 , Cats Paws and Catapults : Mechanical Worlds of Nature and People：楊永鈺譯,2004,《貓掌與彈弓》,臺北市:先覺

Stanley Abrcrombie , 1993 , Archite... | Steven Vogel , 1998 , Cats Paws and Catapults : Mechanical Worlds of Nature and People ; 楊永鈺譯,2004,<<貓掌與彈弓>>,臺北市:先覺. | Tim Cresswell , 2004 ,Plac...

stilts：踩高橇

slingshot 打彈弓 | stilts 踩高橇 | marbles 打彈珠

bridge piece：水口鐵

ball catch ---------------------彈弓波子 | bridge piece ------------------水口鐵 | Jiffy-matic connector ---------------------快速連接喉