air名— 空名 · 气名 · 航空名 · 空中名 · 曝名 · 风范名 · 气态名 · 炁名 查看其他译文 © Linguee 词典, 2024 ▾ 外部资源(未审查的) Through the exchange of gas withtheair oxygencontent is always regulated in the direction of 100% saturation. ...
As altitude increases, the amount of oxygen in the air declines due to the falling partial pressure. A mountaineering friend once told me that atop Mount Qomolangma, which stands at 8,848.86 meters, the amount of oxygen in the air is about one-third of that at sea level. In Lhasa, at ...
1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 同义词 air 行业词典 医学 氧:一种气体元素,游离存在于空气中和结合于大多数非元素的固体、液...
网络释义 oxygen' n. 1. 氧;氧气a chemical element. Oxygen is a gas that is present in air and water and is necessary for people, animals and plants to live. 例句 释义: 全部,氧,氧气,极速杀阵 更多例句筛选 1. In the absence of surface oxygen, CO might be hydrogenated directly to formy...
in such portion of the outlet line, a valved vent line from the air inlet end of the, or each, bed to permit release of any superatmospheric pressure in such bed and a valved line leading from the air inlet end of the, or each, bed to a vacuum pump to permit evacuation of such ...
Automobiles and trucks consume a major portion of the energy used fortransportation in the US. They generate a significant amount of the emissions thatcontribute to air pollution. During the past few years, research on cleaner burningalternate fuels has been aimed at improving engine efficiencies and...
Oxygen is a colourless gas that exists in large quantities in the air. All plants and animals need oxygen in order to live. e.g. The human brain needs to be without oxygen for only four minutes before permanent damage occurs. 人的大脑缺氧4分钟后便会造成永久性损伤。
(ORR) in fuel cells and so on2,3,4. The construction of oxygen vacancy, as an anion defect, is widely studied, which could improve the ability of molecular oxygen activation by electron transfer from the surface to the adsorbent5,6. However, high concentration of oxygen in air or high ...
8,97920Boeing 747-406ERF Photo Locations Map Graph Statistics Created with Highcharts 8.0.0Photos uploadedPhotos uploaded per yearPhotos uploaded20172018201920202021202220232024050100150200250300 Created with Highcharts 8.0.0Most photographed airlinesOtherOtherAir ChinaAir ChinaChina Eastern AirlinesChina Eastern Air...