查询词典 CO2

The calculated δ13C values of CO2 gas being in equilibrium with dawsonite ranged from -8.7‰ to-6.9‰ and was in coincidence with the δ13C values ranging from -9.76‰to -5.74‰ of CO2 gas in Gudian carbonate dioxide gas field.

由于含片钠铝石砂岩与CO2气的分布都受控于深大断裂和玄武岩，CO2气和形成片钠铝石的CO2绝大部分属于幔源岩浆型。

Beijing Institute of Technology, Beijing 100081,ChinaIn order to get the high output power, a RF excited diffusively cooled all-metal slab waveguide CO2 laser was reported, in which gas discharge region was constructed by two aluminum side walls and aluminum electrodes. The region dimension was 2 mm height×20 mm width×386 mm length, and the gas composition was CO2:N2:He:Xe=1:1:3:0.26. This technique replaced the old ceramic and metal sandwich waveguide technique.The optimum out power 127 W was achieved from the RF excited diffusively cooled all-metal slab waveguide CO2 laser with the longitudinal voltage uniformity distribution technique and scaling area technique. The electro-optic conversion efficiency was about 14%.

为了获得较高的激光输出功率，介绍了射频激励扩散冷却全金属板条波导CO2激光器，放电区域由左右两个铝合金壁和上下两个铝合金电极构成，放电区域高2 mm，宽20 mm，长386 mm，工作气体混合比CO2：N2：He：Xe=1：1：3：0.26，该技术代替了过去的金属陶瓷结构，结合纵向电压均匀分布技术和面增比技术，获得了127 W的激光输出功率，光电转换效率高达14%。

The corrosion behavior of carbon steel in CO2-abs orbed 3.0 mol/L MEA、DEA、AMP and MDEA solutions under 1.013×105Pa CO2 at 8 0℃ was investigated by static weight loss test,electrochemical method and surfa ce analytical technology.Their CO2 absorption mechanisms and corrosive charact eristic were discussed from several points of view.

通过失重法、电化学和表面分析技术探讨了1013×105P a和80℃条件下吸收了CO2的4种有代表性的烷醇胺(MEA、DEA、AMP、MDEA)水溶液(3 mol/L )对碳钢的腐蚀性特点，从不同角度讨论了它们的CO2吸收机理和腐蚀性大小。

The measured data were fitted with the modified rectangular hyperbola models of the photosynthetic responses to flag leaf intercellular CO2 concentration A/C(subscript i and air CO2 concentration A/C(subscript a aimed to approach the reasonability of the fitted results obtained from the models.

结果表明：由A/C和A/C修正模型所给的光合能力和CO2补偿点几乎相同，但得到的光呼吸速率和初始羧化效率则完全不等；产生这种差异的原因是利用叶片气体交换测定的数据所计算的胞间CO2浓度并不是植物叶片本身的胞间CO2浓度；A/C修正模型比A/C修正模型更为合理是因为A/C所估算的光呼吸速率接近测量值。

A study on authigenic CO2 flooding technology is carried out to solve the problems of natural CO2 sources, transportation, corrosion, etc. in conventional CO2 flooding.

针对常规CO2驱存在气源、输送、腐蚀等问题，对自生CO2驱油技术进行了研究。

This paper presents the authigenic CO2 flooding mechanism and selects the authigenie CO2 flooding system based on taking reaction speed and economic factors into account. Evaluation is conducted on the effect of the selected CO2 system on expansion viscosity reduction in crude oil. The flooding mechanism and effect of the system is studied by using microscopic models and physical models.

给出了自生CO2驱油机理，在考虑反应速度、经济因素的基础上，筛选出自生CO2体系，对优选出的体系进行原油膨胀、降黏效果评价实验，并利用微观模型和物理模型研究了其驱油机理和效果。

In this thesis, a series of complexes based on aromatic multicarboxylic acids have been successfully synthesized in solutions or under hydrothermal conditions. Their structure and properties are investigated.(1) Eight complex compounds have been synthesized and characterized by X-ray single crystal diffractive technology: The eight complexes are listed as following: [Cu242] complex 1 [Cd22(H2O)4]·4H2O complex 2 [Co(H2btc)(H2O)3] complex 3 [Co2(H2O)2]·H2O complex 4 [Ni22(H2O)4] complex 5 [Cu22(H2O)4] complex 6 [Co(H2biim)2(H2O)2](H2btc) complex 7 [Zn(H2biim)2(H2O)2](H2btc) complex 8 The structure of complex 1 is dinuclear complex resulted from weak interactions（0-D chain）; complex 2 is 1-D chain stucture result from interactions of water molecules; complex 3、4、5、6 are coordination polymers using hydrothermal synthses, where the first kind ligand is H4btc, the second kind ligand is phen and Co2+、Ni2+、Cu2+ as center ions, respectively. While the coordination enviroment of Co2+ is the same in complex 3, the coordination geometries around the Co atoms in complex 4 are obviously different because of the different reaction conditions. In complex 4, the 1-D chains are connected into 2-D layer through carboxy groups of ligand H4btc. The structures of complex 5、6 are 1-D chain stucture result from interactions of carboxy groups in ligand H4btc. Complex 7、8 are homeomorphy compounds. Either of them are linked to the 3-D chains through intermolecular hydrogen bonds. Each H4btc lose two protons and H2btc2- acts as negative electron balance.

合成了8个结构新颖的配合物，并用X-射线单晶结构分析方法确定了晶体结构，分别为： [Cu242] 配合物1 [Cd22(H2O)4]·4H2O 配合物2 [Co(H2btc)(H2O)3] 配合物3 [Co2(H2O)2]·H2O 配合物4 [Ni22(H2O)4] 配合物5 [Cu22(H2O)4] 配合物6 [Co(H2biim)2(H2O)2](H2btc)配合物7 [Zn(H2biim)2(H2O)2](H2btc)配合物8 配合物1是一个依靠弱作用连接的双核铜结构；配合物2借助水分子形成一维链状结构；配合物3、4、5、6是以H4btc为第一配体、phen为第二配体，通过水热法合成的配合物，其中，Co2+、Ni2+、Cu2+为中心离子；配合物3中的二价钴离子具有相同的配位环境，不同反应条件下得到的配合物4中的二价钴离子存在不同的配位环境，在配合物4中，一维链通过H4btc上的羧基形成一个二维层结构；配合物5、6是借助H4btc上的羧基形成的一维链状结构；配合物7、8属于异质同晶结构，它们的分子通过分子间氢键形成三维网状结构，H4btc上的羧基失去2个质子，作为一个二价负离子起到电荷平衡作用。

Taking Taiwania cryptomerioides as an example, as estimation, the preservation treated sill of one wooden construction building with a floor area of 136 m2 could reduce 43.72 kg CO2 which fixed in the wood would return to the atmosphere by the gnawing of termite. And it would reduce 129.90 kg and 123.50 kg of CO2 caused by the infringement of Lenzites betulina and Laetiporus sulphureus respectively.

CO2减量效益方面，建筑物若加以适当的木材防腐后，以台湾杉试材经AAC防腐，所改善的试材重量损失率为例，一栋面积为136 m2木质构造建筑物之地槛材部分，可减少因台湾家白蚁啃蚀造成木材中固定的CO2约43.72 kg返还大气；抵抗白腐菌及褐腐菌侵害而言，减少129.90及123.50 kg的CO2返还大气。

The experimental results showed, after absorption of CO2, the material could be reprepared, whose performance of absorbing CO2 for the second time is affected by the temperature and air flux during repreparation.

实验结果表明，在吸收CO2后材料的再次合成过程中合成温度及空气流量影响材料吸收CO2的循环性能，在再次合成温度为750℃，空气流量为100mL／min的条件下，合成的材料具有良好的循环吸收CO2的性能。

Three treatments of the CO2 enrichment, designed as 500 μmol·mol-1 CO2 open-top chamber, ambient control chamber and unchambered field approx.

采用开顶箱的方式对红松和长白松进行高浓度CO2处理， CO2浓度分别受控于高浓度CO2箱(500 μmol·mol-1)、对照箱(370 μmol·mol-1)和裸地(370 μmol·mol-1)。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。