door screen短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 门帘 Adds an outlet to exhaust oxygen and a door screen on the head cover in order to decrease the leakage of oxygen in air compression chamber and ensure the safety of hyperbaric oxygen treatment. 为了减少输氧头罩在空气加压舱治疗应用中的氧气外漏，对输氧头罩进行增设排气口和添加门帘改造，空气加压舱内氧浓度可有效地控制在23%以下。 chemyq