1. Past glacial ages occurred partly because the weathering of rocks, over millions of years, pulls CO2 from the atmosphere, locking it in ocean floor sediment.
过去冰河时代发生的部分原因在于在几百万年的时间里，石头的风化吸收了大气中的二氧化碳，然后以沉积物的形式把这些二氧化碳固定在海底。
2. CO2的近义词
2. Moreover, the release of CO2 from a heap of fermentation in present unit could last nearly 3 weeks. Consequently, the vegetable yields for all vegetable species including celery Apium graveolens L.
该农业有机废弃物发酵CO2施肥技术，可使大棚内的芹菜、生菜、莴苣、油麦菜和青菜等5蔬菜可食部分的生物量分别提高260%、135%、115%、140%和322%。
3. CO2的反义词
3. Ceramic insert was designed to separate water and vapor making use of surface tension.
在有人的密闭环境中，为保障人的健康与安全，必须控制环境中CO2 浓度。
4. The relationships between activated carbon characteristics and CO2 gasification time were investigated at the KOH/char ratios of 1 and 4 for studying the effect of the combined activation process. At the low KOH/char ratio, long CO2 gasification time significantly increased the specific surface area and mesopores volume ratio. At KOH/char equal to 4 and CO2 gasification time equal to 30 minutes, the highest surface area of 2844 m2/g was obtained.
KOH伴随CO2复合活化法在KOH/char为1和4，探讨活性碳之性质与CO2气化作用时间之关系，了解在低KOH/char值时CO2气化作用对比表面积和中孔容积比皆有显著的增加，当KOH/char为4和CO2气化30分钟获得最高表面积
5. CO2 and H2S exist in the hydrocarbon zone and foramtion water, as the accompany gases of petroleum and nature gaso or components of formation water, which will cause corrostion to the cement sheath under certain conditions of humidity and pressure. It will decrease the cement sheath`s alkalinity, which results in the decrease of cement sheath`s strength, permeability increase, and places a premium on fluid channeling and borehole wall sloughs accident in plastic formation, shortening the oil- gas well`s production lifetime and giving rise to tremendous ecomonic losses.
CO2和H2S作为石油和天然气的伴生气或地层水的组分存在于油气层或地层水中，在一定的湿度及压力条件下会对固井水泥环产生腐蚀作用，从而降低水泥环的碱性，使水泥环强度下降，渗透率增大，并诱发流体窜流、塑性地层井壁跨塌等事故，从而缩短油气井的生产寿命，造成巨大的经济损失。
6. It combines oxygen scavenging with barrier properties, providing essential protection from O2 ingress, CO2 loss and potential product degradation.
它结合了氧气阻隔性能清除，提供从氧气的渗入，CO2的损失和潜在的产品退化的重要保障。
7. CO2
7. Using the CuCl CO 2 as catalyst, the processes of alkoxylation of non activated aromatic bromides were studied.
使用CuCl－CO2为催化剂，研究了非活性芳香溴化物烷氧基化反应条件。
8. CO2的意思
8. The main study focused on the model building of hollow fiber absorption of CO2 and the mass transfer theory.
中文摘要本次研究的重点将会放在建立起中空纤维膜管模组气体吸收反应器的反应模式与理论架构。
9. Laboratory incubation studies show that soil respiration decreases in the early stages and then stabilizes in the later stages of incubation (a total time period of 120 h) for all soils under different cropping systems. There are significant differences in soil respiration quotients among different cropping patterns, with the highest average soil respiration quotient of 20.54 μg(CO2-C)·mg-1·h-1 in WSR, and the lowest of 14.01 μg(CO2-C)·mg-1·h-1 in WCtR.
不同种植方式下土壤呼吸在120 h内的变化均为先下降后趋于平稳，不同种植方式下的土壤呼吸商之间呈显著性差异，WSR呼吸商最高，平均20.54 μg(CO2-C)·mg-1·h-1，WCtR最低，平均14.01μg(CO2-C)·mg-1·h-1。
10. The results showed that It was feasible to sulfurize hydrotreating catalyst by acidity gas. The bromine number was still less than 0.5gBr_2/100g when the concentration of CO_2 was up to 1.5 times concentration of H2S.
实验证明：酸性气作硫化介质对加氢催化剂进行干法硫化是可行的，当CO2浓度达到H2S 浓度的1.5 倍时，溴价仍满足工业溴价小于0.5 gBr2/100g 的要求。
11. CO2什么意思
11. Diurnal dynamics of CO_2 flux from was monitored every 3 hours in four continuous 2 days ea...
结果表明，不同小区平均土壤呼吸与CO2排放速率在CO2-C 12.2~25.2 mg/(m2.h)之间，日排放量在CO2-C 327.2~604.1mg/(m2.d)之间，低于文献报道的森林和草地及旱作农田的土壤呼吸；与长期有机-无机配施处理相比，长期单施化肥CO2日排放量提高了55%~85%，并且显著提高了土壤呼吸对土壤(5 cm)温度的响应敏感性。
12. At one time, we emphasized the solar radiation transfer mechanics. To advance the estimation precision, in this paper, we classed land cover into four layer, canopy of Robinia pseudoacacia L, top of Melilotus albus Desr, bottome of Melilotus albus Desr and layer of soil, separately estimated their fluxes of moisture, heat and CO2, actualized the separated simulation for each composement in soil-vegetation-atmosphere contimuum.
同时，本次研究强调了太阳辐射在冠层间的辐射传输机制，为了提高估算精度，本文把地表覆盖分为刺槐冠层，草木樨上层、草木樨下层及土壤层四个层面来分别估算其水热及CO2通量，做到了土壤-植被-大气连续体能量及物质通量的分离模拟。
13. Power comes from a small turbodiesel engine that ensures a better fuel economy and lower CO2 emissions.
动力来自一个小涡轮增压柴油发动机，保证了更好的燃油经济性和降低二氧化碳排放量。
14. CO2的反义词
14. The two pyruvates are then converted by the yeast into carbon dioxide(CO2) and ethanol (CH3CH2OH, which is the alcohol in beer). The overall reaction
两个丙酮酸盐被酵母放换成为二氧化碳(CO2)和乙醇(CH3CH2OH，也便是在啤酒中的酒精)。
15.
15. The crude carbolic acid was prepared from gasoline alkaline mud by adding sulfuric acid or carbon dioxide.
以炼油厂汽油碱渣为原料，通入硫酸或CO2 中和后去除水相得到粗酚，粗酚经过分馏处理得到馏分在 1 70～ 2 0 0℃的混合酚。
16. With CO2 as acidifying agent, potassium chromate was directly reduced to chromic oxide hydrate under hydrothermal conditions using formaldehyde as reducing agent.
以CO2气体为酸化剂，小分子有机化合物甲醛为还原剂，通过表面活性剂处理，在水热条件下直接还原铬酸钾水溶液得到水合Cr2O3，继而800℃下煅烧得到球形Cr2O3超细粉体。
17. In the synthesis of canthaxanthin by selective catalylitic oxidating of βcarotene, CO2 was used as acidifying or alkalizing agent, which controlled reacting system acidity and protected polyene., producing less by-products and increasing catalylitic oxidation selectivity. In the addition reaction of isoprene with hypochloric acid, 1-chloro-2-methyl-3-buten-2-ol and l-chloro-2-methyl-3-buten-4-ol were made by controlling of the acidity with carbon dioxide i...
CO2作为酸碱调节剂和惰性气体，在β-胡萝卜素催化氧化合成角黄素反应中，可以控制反应体系酸性，保护原料中的双键，减少副反应发生，提高催化氧化反应的选择性；异戊二烯氯醇化生成1-氯-2-甲基-3-丁烯-2-醇和1-氯-2-甲基-3-丁唏-4-醇反应中，CO2代替有机酸作酸碱调节剂，控制次氯酸的生成速度，达到调控反应的目的，反应条件温和，不副产固体。
18. The calculation of industrial energy intensity and CO2 intensity usually stand for direct energy use and CO2 emissions per unit of output. It rarely discusses indirect energy use and emissions. On the other hand, the responsibility to global CO2 emissions in Taiwan usually use production based calculation. The purpose of the study is to use hybrid-input-output analysis to calculate direct and indirect emissions per unit of output, and apply to industry, the issue of trade, and to clarify the production and consumption based measurement of the difference in CO2 emissions.
中文摘要过去在计算能源密集度及二氧化碳密集度时，通常是探讨直接能源投入及CO2排放，而较少讨论到间接能源投入及排放量，另一方面，对於国家减量责任，亦大多以生产基础排放量的角度计算，因此在本研究中，运用量值混合投入产出法，首先针对单位产值直接排放与直接加间接的排放，建构出一套完整的计算流程，将指标运用在产业分析与国际贸易的议题，并厘清我国的生产基础与消费基础排放量之差异。
19. Through experimental study and application of CO2 CA test-storehouse for controlling stored-grain insects, the factors that should be taken into account and the solutions were given out, for example, the airproof test-storehouse, the problems of inflating and supplementing, the arrangement of the test apparatus, data collection, the treatment with insect-cage and the examination of insect-station.
通过CO2气调防治储粮害虫试验仓的研制及应用试验，提出了试验仓在试验中应考虑的因素及解决的方法，例如，试验仓的密封问题、充气与补气的问题、测试装置的布置与参数的采集、虫笼的放取与虫情的检查等。
20. Hexane (C6H14), ethyl acetate (CH3CO2C2H5), dimethoxyethane (CH3OCH2CH2OCH3): Common organic solvents, handle accordingly: keep away from flames, do not ingest or inhale, dispose of as organic waste.
己烷 (C6H14)，乙酸乙酯(CH3CO2C2H5)，二甲氧基乙烷(CH3OCH2CH2OCH3)：常见的有机溶剂，按相同方法处理：远离火种，不要摄入或吸入，按有机废弃物处理。