breath invt.吸入breathn.呼吸；气息breathing apparatus set tally呼吸器挂牌breathing machine maintenance呼吸机维护breath holding breaking point屏气极点breath-holding during labor分娩时屏气Breathing response to hypoxia缺氧呼吸反应breathing controlled pacemaker呼吸控制型心脏起搏器Breathing into the Upper Chest呼吸至胸部锁骨部位breathing regulation of qigong气功调息法breathing apparatus safety line呼吸器安全绳breath sounds equal bilaterally双侧呼吸音相等