查询词典 oxygen

The increase of oxygen content in gas can reduce the oxygen content in the oil.

气体中氧的增加可以使油中的氧含量降低。

By comparing the carbon and oxygen isotope records of stalagmite P001 and flowstone P007 with the modern rainfall amount,it can be seen that the oxygen isotopes reflects the strength of precipitation or monsoon in annual to decadal time scale.

通过P001石笋和P007流石的碳、氧同位素记录与现代降雨记录的比较可知，在年际至10年际尺度上，氧同位素反映的为降水或者季风的强弱。

Methods 280 cases of patients with professional anaesthetists to the fentanyl intravenous propofol anesthesia later, gastroscopy, during regular oxygen, monitoring blood oxygen saturation levels, blood pressure, heart rate and rhythm changes were observed during and after operation The disease is.

对280例患者经专业麻醉师给予芬太尼联合异丙酚静脉麻醉诱导后行胃镜检查，术中常规输氧、监测血氧饱合度、血压、心率、心律改变，观察术中及术后患者情况。

It is Investigated that the effects of vitamin C and E on M. nipponense in different molting stages by measuring oxygen consumption rates, ammonia-N excretion rates and activities of antioxidant enzymes(SOD,CAT,GSH-Px,GST,GR) in three groups which are control group,Vc group andgroup.1. The oxygen consumption rates are high in stages D2 and A, but low in stage C.

设立三个试验组：对照组，V_C组(200mgV_C／kg)和V_C+V_E组(200mgV_C／kg+400mg V_E／kg)，以上述分期结果为标准，测定了三个试验组的日本沼虾在蜕皮各时期的耗氧率，排氨率以及抗氧化酶(超氧化物歧化酶SOD，过氧化氢酶CAT，谷胱甘肽过氧化物酶GSH-P_X，谷胱甘肽转移酶GST，谷胱甘肽还原酶GR)活性的变化，结果如下： 1。

It is believed that the original oxygen was formed by the separation of water into hydrogen and oxygen molecules in the upper atmosphere.

人们认为最初的氧是由高层大气的水分离为氢和氧分子而形成的。

The two main sources of Oxygen are cylinders and oxygen concentrators.

两种主要的氧气源有氧气筒和氧气压缩器。

AMOC results reveal that S parameter of three lifetime components in oxygen are all bigger than that in nitrogen atmosphere. These are probably caused by the oxygen making the spin-conversion of positronium atoms.

结合正电子寿命-动量关联谱测量结果，本工作分析了不同气氛下多孔硅样品中电子偶素湮没寿命及动量变化关系，讨论了多孔硅中电子偶素的湮没机制以及气氛对孔径计算理论模型的影响。

In order to provide theoretical basis for applications of plasma method in degradation of pollutants,the degradation mechanism of halons(CF 2ClBr,CF 3Br)with cold plasma technology was studied.In oxygen free systems,the amounts of some products change dramatically with the discharge time.When enough oxygen is present,the dominant product is CF 2O.

利用低温等离子体技术对哈隆类物质 CF2 Cl Br和 CF3Br进行了降解反应研究，发现无氧条件下某些降解产物的量随放电时间不同而出现波动，表明降解过程中存在竞争反应；而氧气过量条件下不存在竞争反应，其主要产物为 CF2 O等。

Portable oxygen tanks are also available and liquid oxygen may be available in the future.

便携式氧气罐，也可和液态氧，可在将来提供。

Deep-sea vent communities, for instance, are too far down to directly use sunlight but they do use oxygen dissolved in seawater, and that oxygen is produced by photosynthesising plankton at the surface.

深海通风孔位于海底很难获得太阳光的照射，通风孔的生态系统便会充分使用海水中分解的氧气，这些氧气是由水面进行光合作用的浮游生物生成的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。