单词lever-escapement
网络: 叉式擒纵机构；杠杆式擒纵机构了；叉瓦式擒纵机构
Technical requirements and verification for watches and watch movements; watches with pallet lever escapement
小型钟表及其机件的技术要求和检验.带瓦式擒纵装置的小型钟表
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。带针销式擒纵装置的钟表