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pressure reactions
相关语句
  相似匹配句对
     pressure;
     压力;
短句来源
     Organic Reactions under Super High Pressure
     超高压下的有机反应
短句来源
     The Instant Reactions on Blood Pressure After Subtongue Diltiazem
     嚼碎后舌下含服地尔硫卓即时降压效应的观察
短句来源
     The Pressure of Nurse
     浅谈护士的职业压力
短句来源
     ORGANOSONOCHEMICAL REACTIONS
     有机声化学反应
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  pressure reactions
Different catalytic performances are observed in the atmospheric and high-pressure reactions; while the catalyst was highly active and extremely stable under atmospheric pressure it shows a self-stabilization process under high pressure.
      
The hydrogenation of C, CO, and CO2 has been studied on polycrystalline cobalt foils using a combination of UHV studies and atmospheric pressure reactions in temperature range from 475 to 575 K at 101 kPa total pressure.
      
In the formation of blood pressure reactions in response to stimulation of the vesical and recral mechanoceptors the skeletal muscle vessels did not occupy any exclusive position among the vessels of the various parts of the body.
      
High-Pressure Reactions in the CeCo3-H2 and GdNi3-H2Systems
      
In addition to the blood pressure reactions, the use of imipramine was complicated by dose dependent kinetics.
      
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Olivine and enstatite collected from harzburgite at the bottom of ophiolite in eastern Dngqn are rich in Mg (Fo= 91.3- 92.2, ave. 91.9; En= 87.9- 92.4, ave. 90.5). MgO content of both ol and opx is similar to that of most ophiolites in the world, but is higher than that of the abyssal peridotite, indicating that the source materials are likely to be very refractory. The Cr/(Cr+Al) ratios of spinel from harzburgite range from 0.56 to 0.66, which are also higher than those of abyssal peridotite (lower than 0.6),...

Olivine and enstatite collected from harzburgite at the bottom of ophiolite in eastern Dngqn are rich in Mg (Fo= 91.3- 92.2, ave. 91.9; En= 87.9- 92.4, ave. 90.5). MgO content of both ol and opx is similar to that of most ophiolites in the world, but is higher than that of the abyssal peridotite, indicating that the source materials are likely to be very refractory. The Cr/(Cr+Al) ratios of spinel from harzburgite range from 0.56 to 0.66, which are also higher than those of abyssal peridotite (lower than 0.6), suggesting higher degree of partial melting for harzburgite from Dngqn. In cumulate ultramafic rocks, olivine is absent, whereas orthopyroxene (bronzite) is dominant. Bronzite has higher MgO content in comparison with other types of ophiolite and is associated with both Ca-rich plagioclase and quartz, implying that the primary magma might be boninitic magma rich in SiO_2, MgO and poor in TiO_2, Na_2O as compared with MORB. Experiments show that the associations of both Opx+ Pl and Opx + Cpx + Pl seen to have features of high pressure reaction relative to those of plutonic rocks (cumulate or non-cumulate) beneath mid-oceanic ridge. Mineralogical study suggests that ophiolite and boninite in Dngqn are genetically related to each other. The Dngqn ophiolite represents part of plutonic rocks related to boninite and occurs probably on the bottom of intraoceanic island arc, similar to things in the island arcs of western pacific ocean.

西藏丁青蛇绿岩的东杂岩体是一种与玻镁安山岩(Boninite)有关的特殊的蛇绿岩类型。其 堆晶斜方辉石岩、辉长岩和辉绿岩的岩石化学、微量元素以及稀土元素的地球化学特征均与西太平洋诸岛(伊豆—马利亚纳、巴布亚新几内亚、新喀里多尼亚等)的玻镁安山岩相似。此外,超镁铁质构造岩中的橄榄石和顽火辉石富镁,指示残余地幔具强烈亏损的性质。尖晶石的Cr含量中等至较高,与深海橄榄岩及大洋中脊玄武岩中的尖晶石不同。堆晶岩和辉长岩中的古铜辉石富镁,斜长石富钙,也明显不同于典型大洋中脊环境的特征,表明丁青东蛇绿岩形成的环境不像大洋中脊或弧后盆地,而可能是在洋内俯冲带之上的岛弧底部。

The catalytic properties of K-Fe/ZSM-48 catalyst in the synthesis of light olefins from CO and H2 have been investigated. The reaction was performed in a high pressure reaction system, the results indicated that the catalyst possessed a high selectivity for light olefins with a high CO conversion. The catalyst was characterized by TPR, TPD, XPS and chemisorption. The results showed that the active components distributed in different phases on the surface of the catalyst during the reaction,...

The catalytic properties of K-Fe/ZSM-48 catalyst in the synthesis of light olefins from CO and H2 have been investigated. The reaction was performed in a high pressure reaction system, the results indicated that the catalyst possessed a high selectivity for light olefins with a high CO conversion. The catalyst was characterized by TPR, TPD, XPS and chemisorption. The results showed that the active components distributed in different phases on the surface of the catalyst during the reaction, the addition of potassium promoted the reduction of the first stage Fe(Ⅲ)--Fe3O4, improved the reducibility of the catalyst, and decreased the irreversible adsorption of H2/CO.

考察了K-Fe/ZSM-48催化剂在CO加氢合成低碳烯烃反应中的催化性能。结果表明,该催化剂有较高的活性和低碳烯烃(C_2~=-C_4~=)选择性。TPR,TPD,XPS和化学吸附测试表明,催化剂有良好的催化性能的原因,在于负载活性组分有较好的还原度和适宜的相分布。钾的加入促进了Fe(Ⅲ)→Fe_3O_4的还原,阶低了H_2/C0的不可逆吸附,使催化剂的活性和选择性得到提高。

This article introduces technical character and choice of the technology refrence date for internal bore welding. Taking, internal bore welding for tube to tube plate on the low pressure reaction water condenser for example, the procedure test and products welding is decribed.

本文概述了内孔焊技术的特点及其应甩,着重介绍了内孔焊接工艺参数的选择。以低压反应水冷凝器管子管板内孔焊为例,叙述了不锈钢管子与管板内孔焊接的工艺试验和产品焊接。

 
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