Inversions can help clear the upper respiratory tract and drain secretions from the nose, allowing freshly oxygenated blood to flow into the oral cavity.
倒置体式能清理上呼吸道，排出鼻腔内的分泌物，让新鲜富氧的血液循环到口腔。
Minish the well space and increase transflux routeways upper backwater and driving, especially setup precipitation well and drain residual water at the bottom of diving layer.
减小井间距，增加上层滞水和潜水的入流通道，尤其要在潜水含水层底板低洼处设置降水井将低洼处的残留水引走。
A dual mechanical seal floor drain core is composed of an upper floor drain core body, a floater, a lower floor drain core body and a valve.
一种双重机械密封地漏芯，由地漏芯上主体、浮子、地漏芯下主体和活动门组成。
To drain upper lobes, anterior segments, place the child supine on a pillow in your LAP.
引流肺上叶的肺前段，把枕头放在你的腿上，让小儿仰卧在枕头上。
To drain upper lobes, anterior segments, place the child supine on a pillow in your LAP.
引流肺上叶的肺前段，把枕头放在你的腿上，让小儿仰卧在枕头上。
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