Implants for osteosynthesis - Bone screws and auxiliary equipment - Specification for the dimensions of screws having hexagonal drive connection, spherical under-surfaces and asymmetrical thread是什么意思_Implants for osteosynthesis - Bone screws and auxiliary equipment - Specification for the dimensions of screws having hexagonal drive connection, spherical under-surfaces and asymmetrical thread在线翻译_英语_读音_用法_例句