小标的英文：
small tenon
adj. 小的；不重要的；小写的；年幼的
adv. 成为小块，小小地
n. 后腰；小件衣服
Automatic Small Scratch Removal
自动去除小擦痕
The percentage of unskilled workers is small.
非熟练工的比例很小。
A small amount of liquid;a drop.
少量液体；一滴
A small or young falcon.
小隼一种小型的或年幼的隼
It's a small world
人生何处不相逢
n. 榫,凸榫
vt. 接榫,造榫
Driving tenons and sockets for parallel shank tools-- Dimensions and tolerances
直柄工具用传动扁尾及套筒的尺寸和公差
A usually rectangular cavity in a piece of wood,stone,or other material,prepared to receive a tenon and thus form a joint.
榫眼通常在一木头板、石块或其他物质中的四边形的洞孔，用来嵌入另一榫从而形成一个接合点
A fan - shaped tenon that forms a tight interlocking joint when fitted into a corresponding mortise.
鸽尾榫嵌入榫眼形成紧扣在一起的接头