Objective to compare the ProSeal laryngeal mask airway (PLMA) and the standard laryngeal mask airway (SLMA) for intermittent positive pressure ventilation (IPPV) in a randomized auto control design.
目的采用随机自身对照设计方法比较食管引流型喉罩通气道(PLMA)和标准型喉罩通气道(SLMA)用于间歇正压通气的有效性。
As a convenient facility for ventilation in driving, skylight has become standard configuration of many kinds of cars made by every auto plant.
汽车天窗作为行车时换气的便利设备，已经逐渐成为各个汽车厂家生产轿车的标准配置。
Burning type catalyzing gas sensors are the devices of the gas monitoring system in coal mines, which realizes the auto on-off of the ventilation system based on detecting the gas volume fraction.
热燃烧式催化瓦斯传感器是煤矿矿井瓦斯监控系统的核心部件，用于检测瓦斯体积分数，实现风电闭锁功能。
Burning type catalyzing gas sensors are the devices of the gas monitoring system in coal mines, which realizes the auto on-off of the ventilation system based on detecting the gas volume fraction.
热燃烧式催化瓦斯传感器是煤矿矿井瓦斯监控系统的核心部件，用于检测瓦斯体积分数，实现风电闭锁功能。
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