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- Scientists are not certain why the oxygen level dropped. 科学家们现在还不能断定为什么含氧量会下降。
- Oxygen levels below 19.5% may cause asphyxia. 空气中氧含量低于19.;5%25就可能引起窒息。
- The Earth's atmosphere seeks a steady oxygen level much as a thermostat hones in on a steady temperature. 地球大气寻求固定在某一氧含量水平，就像恒温器总是寻求固定回某一温度。
- The uniform 20 percent oxygen level it has found turns out to be "fortuitous" as one scientist put it. 它混到了平均20%25的氧含量水平，照一位科学家的说法是“撞了大运”。
- The residents of Lhasa, Tibet, thrive at a similar, slightly reduced oxygen level. 西藏拉萨居民，就是在那样一个类似的低氧水平下生活。
- Though not catastrophic, the drop in oxygen levels was bewildering. 尽管不是灾难性质，氧气水平的下降仍使人感到迷乱。
- They produced stable oxygen levels slightly higher than on Earth. 它们生产出略高于地球的稳定的氧气量。
- The experimental data in glutamate fermentation showed that, dissolved oxygen level largely affect the synthesis of glutamate and other major by-product (lactate). 摘要谷氨酸发酵中，不同溶氧条件对产物谷氨酸和主要副产物乳酸的生成积累影响很大。
- Objective:To study the relativity between the decreased saturation of blood oxygen level and other related data in patients with obstructive sleep apnea syndrome(OSAS). 目的:探讨阻塞性睡眠呼吸暂停综合症(OSAS)患者血氧饱和度下降程度与其它有关指标的相关性。
- Because the resulting O2 concentration of 7 Vol% is to close to the required concentration of O2 we have to do this twice times to get an Oxygen level in the range of 2 to 3 %. 因为氧气的体积浓度为7%25，接近燃烧所需要的氧气浓度值，所以必须进行两次这样的操作，使用氧气浓度范围为2-3%25。
- Simple Asphyxiant - Maintain oxygen levels above 19.5%. Extremely flammable. 单纯窒息剂-应保持氧含量在19.;5%25以上。本产品极为易燃。
- Q. Why are high dissolved oxygen levels better than air sparging or ORC? 为什么高的溶解氧浓度比空气喷射或ORC更好?
- Ultrafine pulverized-coal contained in the tertiary air was used as the reburning fuel and the oxygen level of the tertiary air was reduced with the use of flue gas recirculation(FGR). 该再燃系统利用三次风中的超细煤粉作为再燃燃料,并通过烟气再循环来降低三次风中的氧浓度。
- Methods:Thirteen right-handed healthy Chinese women underwent blood oxygen level dependent (BOLD) fMRI voluntarily while recognizing happy, sad, neutral emotional faces and fixation cross videos. 目的:利用事件相关的功能核磁共振成像技术研究健康汉族女性对动态表情的识别情况并探讨其神经基础。
- Results The changes in blood oxygen level and the increased artial inflow result in the brain cortex functional MR signal, which displayed as slightly increased signal intensity in the active cortex. 结果脑功能磁共振信号的产生主要与功能区血氧含量的改变、动脉血供增加引起的流入效应等因素有关,主要表现为功能区信号增高。
- "Oxygen-enriched air" or "enriched-air nitrox" refer to nitrox mixtures with oxygen levels greater than 21 percent. “高氧空气”或“高氧氮氧混合气”指含氧量大于21%25的混合气。
- When oxygen levels drop, oxidative phosphorylation slows and ATP levels decrease. 含氧量下降时，氧化磷酸化的速率会减缓，ATP含量就跟著下降。
- People who live at higher altitudes have even more RBCs because of the low oxygen levels in their environment. 居住在海拔较高的地区的人，体内的红血球数量更多，因为他们生活的环境氧气相对更少。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Blood oxygenation level dependence (BOLD) fMRI scan was performed in a Siemens Trio 3.0T MRI scanner with an echo planar imaging (EPI) sequence. 设备为Siemens公司Trio3.;0T磁共振扫描仪及头部正交线圈;采用EPI序列进行BOLD脑功能磁共振成像。
