齿状部分
2.An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot.
3.The serial number of pricker is composed of three sections including 17 digital codes: the first section (1-4 digits) is the standard size of international general mode; the second section (5-11 digits) is penetration distance, length of functional section, pattern of barb, quantity of barbs on each cording and the distance from needlepoint to the first dent; in the third section (12-17 digits), except letter H representing "Hengxiang" brand, the other group of digits represent some special characters of pricker.
