您要查找的是不是：
- PNPB positive negative pressure breathing 正负压呼吸
- end expiratory negative pressure breathing 呼气末期负压呼吸
- intermittent negative pressure breathing 间歇性负压呼吸
- intermittent positive negative pressure breathing 间歇性正负压呼吸
- Intermittent positive negative pressure breathing; IPNPB 间歇性正负压呼吸
- negative pressure breathing 负压呼吸
- The negative pressure loop should be noted. 应该注意到负压的腹点。
- This negative pressure phase is of short duration. 负压周期的延续时间很短。
- The Gating Design for Negative Pressure EPC. 负压消失模铸造原料磨衬板的浇注工艺设计
- Intrapleural pressure is usually negative pressure. 胸膜腔内压通常为负压。
- Operated at sealed negative pressure and designed by GMP. 密封负压操作，按gmp规范设计。
- Using negative pressure air pipe to ventilate for the being constructed tunnel. 使用负压风管对在建隧道进行通风换气。
- Negative pressure aspirator is necessary to every clinical sections. 负压吸引器是各个临床科室所必备的医疗设备。
- Objective To compare cardiovascular function of subjects exposed to positive pressure breathing (PPB) while wearing G suits with different bladder coverage. 目的探讨加压呼吸时抗荷裤的囊覆盖面积大小对心功能的影响。
- A vacuum pump creates negative pressure for correct operation of the filtrate recovery system. 真空泵产生的负压是保证滤液回收系统的正确运行。
- Objective To observe the protection effects of a new combined anti-G measure, which is composed of new bladder anti-G system, unassisted positive pressure breathing for G (PBG) and PHP maneuver. 目的研究以新型囊式抗荷系统、无胸部代偿的抗荷加压呼吸及PHP动作组成的新型综合抗荷措施防护效果;探讨采用该措施进行防护时伴有的疲劳、疼痛等问题。
- Positive pressure and negative pressure combines together, making veneer more stable and durable. 正负压力结合，使贴面更牢固持久。
- Can ensure furnace negative pressure automatic and relative protection to normally running. 可确保炉膛负压自动及有关保护的正常投运。
- The negative pressure causes the acceleration of the Universe, as observed from the type Ia supernova observations. 负压强令宇宙膨胀不断加速,就有如从观测Ia型超新星所得出的结论一样。
- A reversal of normal flow in the system caused by a negative pressure (vacuum or partial vacuum) in the supply piping. 由供应管道内的负压力(真空或部分真空)产生的系统内正常流体的倒流。
