针销 meaning in Chinese

needle pin
pin

Technical requirements and verification for watches and watch movements ; watches with pin lever escapement
钟表及其精密运动装置的技术要求和检验.带针销式擒纵
Do not insert pins into the unit ; do not fix the unit with pins or metal objects ; do not use the sharp appliances to lacerate or use the blunt appliances knock on the unit
不得插入针销，禁止用锐器刻伤或用钝器敲击热护毯，不能用销钉或其它金属固定热护毯。