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- Plants are the main source of atmospheric oxygen. 大气中的氧主要是由植物产生的。
- Rust is the product of a slow combination of iron with atmospheric oxygen and water vapor. 锈是铁和空气中的氧和水蒸汽缓慢结合的产物。
- An organism,such as a bacterium,that can live in the absence of atmospheric oxygen. 厌氧微生物可在无氧环境下生存的一种有机体，如细菌
- An organism, such as a bacterium, that can live in the absence of atmospheric oxygen. 厌氧微生物可在无氧环境下生存的一种有机体，如细菌
- The vivid green and purple auroral colors are caused by high atmospheric oxygen and hydrogen reacting to a burst of incoming electrons. 鲜绿色以及粉红色的外观，是高空大气的氧和氢与冲入大气的电子交互作用而产生。
- During the frying process the fat undergoes several chemical and physical changes caused by heat, water and atmospheric oxygen. 油脂在煎炸过程中,由于温度高及水分和氧气等存在,将发生一系列物理化学变化;
- It is a car that stores hydrogen on board, and, mixing the hydrogen and atmospheric oxygen in the fuel cell stack, creates electricity, said Mittleman. "这种汽车可以将氢储存在车上，然后将氢和大气中的氧气在电池箱中混合，产生电力。
- Caption:: Aurora are most common in green, it is originated by the excited atmospheric oxygen at altitudes of 120 to 180 km. 极光的色彩主要以绿色为主，是由高120至180公里高处大气的氧气被激发而产生。
- "It is a car that stores hydrogen on board, and, mixing the hydrogen and atmospheric oxygen in the fuel cell stack, creates electricity," said Mittleman. “这种汽车可以将氢储存在车上，然后将氢和大气中的氧气在电池箱中混合，产生电力。
- In the older rocks below these glacial deposits are detrital uraninite and pyrite, two minerals considered evidence for very low levels of atmospheric oxygen. 这些冰河沉积物下方的较老岩层，是沥青铀矿与黄铁矿碎屑；这两种矿物被认定为大气中氧气极为稀少的证据。
- Pollen-tube growth down the style is both positively and negatively chemotropic;the tube grows toward chemicals secreted by the pistil, and away from atmospheric oxygen. 花粉管沿着花柱的生长是既有正向性也有负向性的：花粉管向着由雌蕊分泌的化学物质生长，同时远离空气中的氧气生长。
- Shelf life of foods,such as bakery products,is principally affected by two major factors:atmospheric oxygen and the growth of aerobic spoiling microorganisms. 大气中的氧气和需氧微生物腐败是限制烘焙食品等食品货架期的两个主要因素。
- This hematite is gray, however, because the grain size is larger.) The layering of these distinct rock types indicates that the Huronian glaciations occurred precisely when atmospheric oxygen levels first rose. 这些层次分明的岩种，暗示著休伦冰期恰好发生于大气中的氧气浓度初升之际。
- In a quick survey of the scientific literature, biospheric researchers found little data concerning atmospheric oxygen levels in the Earth's atmosphere. 通过对科学文献的快速检索，生物圈研究学者发现了少量关于地球大气中大气氧水平的数据。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- What's the atmospheric pressure today? 今天的气压怎么样？
- The glass (ie atmospheric pressure) is falling. 气压在下降。
- Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
- Go up along with the elevation steps degree to press with atmosphere, the atmosphere oxygen presses separately of lower, obvious increment(P<0.01) of the serum content sVCAM-1,the NO and level of NOS lower obviously. 随着海拔梯度的升高和大气压、大气氧分压的降低;血清sVCAM-1含量明显增加(P<0.;01);NO和NOS水平显著降低(P<0
- Lush atmospheric touches in every room. 每个房间都充满朦胧的艺术美
