头端变频器 头端变频器的英文 英语翻译 headend frequency converter 拓展翻译 头端器headend头端切削工具end cut tool头端下骨折subcapital fracture头端形成acrogenesis头端形成的acrogenous同步变频机synchronous frequency changer调频鉴频器f-m discriminator调频器frequency variator隧道清洗磁头tunnel erase head榫头rabbet梭状乳头papillae fusiformis缩径管接头reducing coupling缩头缩脑fainhearted; timid锁骨头颅的cleidocranial胎儿断头剪endotome胎头测量钳labidometer; labimeter胎头冲击触诊cephalic ballottement胎头刀cephalotome胎头倒转术cephalic version胎头骨盆的cephalopelvic