对于气管插管技术不十分熟练的救援者来说，采用声门上导气装置可能是更合适的选择。
Use of a supraglottic airway device may be preferable for rescuers who are not highly skilled in tracheal intubation.
测试和实焊表明，带有斜孔导气装置的TIG气冷焊枪，保护性能稳定可靠，结构简单，具有推广价值。
The results show that the stable and reliable shielding gas can be obtained with a simple gas cooling TIG gun when it possesses oblique holes on the nozzle device.
最新的HP组件包内含优质的美国瓦茨部件，包括：新型AS-B青铜导气罩和B911S青铜进水阀和防倒流装置组合件。
The new HP package contains quality Watts components … including the new AS-B Bronze Air Scoop and the B911S Combination Bronze Fill Valve and Backflow Preventer.
最新的HP组件包内含优质的美国瓦茨部件，包括：新型AS-B青铜导气罩和B911S青铜进水阀和防倒流装置组合件。
The new HP package contains quality Watts components … including the new AS-B Bronze Air Scoop and the B911S Combination Bronze Fill Valve and Backflow Preventer.
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