百度
谷歌
图片
维基
百科
pin head
pin hinge
pin hole
pin insulator
pin jack
pin joint
PIN junction
PIN junction detector
PIN junction diode
pin key
pin knot
pin link
pin load
pin map
pin mark
pin marker
pin metal
pin money
pin number
pin oak
pin on
pin one's faith on
pin one's hope on
pin one's hope（s） on
pin pallet escape wheel
pin pallet escapement
pin pallet fork
pin pallet staff for roller
pin plate
pin pliers
pin hinge
pin hole
pin insulator
pin jack
pin joint
PIN junction
PIN junction detector
PIN junction diode
pin key
pin knot
pin link
pin load
pin map
pin mark
pin marker
pin metal
pin money
pin number
pin oak
pin on
pin one's faith on
pin one's hope on
pin one's hope（s） on
pin pallet escape wheel
pin pallet escapement
pin pallet fork
pin pallet staff for roller
pin plate
pin pliers
pin head
大头针的针头
钉头
钉头