Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.

2024年1月8日 · Breathing starts when you inhale air into your nose or mouth. It travels down the back of your throat and into your windpipe, which is divided into air passages called bronchial tubes. For your...

In most developed countries (with a few exceptions, such as Australia and Canada) governments are trying to breathe life into property. 大多数 发达国家 （少数 例外 如 澳大利亚 、 加拿大） 的 政府 在 试图 给 房地产 业 注入 活力。 5. It has to be maintained at an altitude where the thin air makes it a struggle for humans to breathe. TeliaSonera 还 必须 在 空气 稀薄 得 令人 难以 呼吸 的 高度 对 它 进行 维护。 6.

2022年3月24日 · As your lungs expand, air is sucked in through your nose or mouth. The air travels down your trachea, or windpipe, and into your lungs. After passing through your bronchial tubes, the air travels to the alveoli, or air sacs.

2023年6月26日 · The most efficient way to breathe is by bringing the air down toward the belly. As the diaphragm contracts, the belly expands to fill the lungs with air.

2018年6月20日 · There are two ways to breathe—through your mouth and your nose, but the nostrils filter, warm and humidify air in a way that the mouth cannot. "At times, breathing through your mouth is necessary (increased physical activity, sinus congestion) but breathing in through your nose helps, especially in a very dry or cold environment," Courtney says.

2025年1月24日 · clear your lungs of stale air; increase oxygen levels; strengthen your diaphragm; use less exertion and energy to breathe

2024年4月10日 · Most people spend more than 90% of their lives inside buildings, and the air we breathe indoors plays a critical role in shaping human health, productivity, well-being, and learning. Respiratory infections like the flu and pneumonia are a leading cause of death in the U.S. and globally, and the risk of airborne infection transmission is greater ...

Made with carbon fibre wrap and aluminium lining, this composite technology produces a lightweight and durable range of Self-contained Breathing Apparatus (SCBA) cylinders providing the ultimate performance and portability. Different SCBA cylinder sizes cater for an extensive range of EEBD and SCBA breathing requirements.