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d hydrogen
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  d氢
     Fracture Reason Analysis for the Piston Rod of CP02D Hydrogen Compressor in Heavy Oil Hydrogenation orkshop
     重油加氢车间CP02D氢压机活塞杆断裂原因分析
  “d hydrogen”译为未确定词的双语例句
     Reinforcement of R & D Hydrogen Energy System Technologies and Speed-up the Commercialization of Hydrogen Economy
     加强氢能系统技术的创新研发,加速氢能经济商业化
     investigate the roles of DWI and PWI with the help of the techniques of 2D hydrogen proton magnetic resonance spectroscopy imaging(2D ~1H-MRSI) and MR angiography(MRA), in diagnosing early cerebral infarction and in the endovascular stent-assisted angioplasty treatment for patients with acute stroke.
     DWI、PWI在二维质子磁共振波谱成像技术(2D hydrogen proton magnetic resonance spectroscopy imaging,2D ~1H-MRSI)及磁共振血管成像(MR angiography,MRA)技术协助下,对早期脑梗死病变位置作准确显示及对缺血半暗带及脑损伤程度的作较为准确判断,并用于对急性脑梗死患者行急诊血管内支架治疗的可能性。
短句来源
     By using quantum chemistry Scf—LCAO—MO AM1 method,the Struc- tures of1—D hydrogen—bond system of Polyaniline(P_(An))and water are optimized.
     本文用量子化学 SCF—LCAO—MO—AM1方法,对于水分子与聚苯胺间的氢键体系进行了结构优化.
短句来源
     Transforming the Coulomb problem to harmonic osillator, we construct nonspreading coherent states for the 2D and 3D hydrogen atom and show that the expectation values of the observables in Q.
     通过把库仑问题转换成线性谐振子,可以建立二维和三维氢原子不扩散的相干态,力学量在这些相干态中的平均值给出物理空间中Kepler轨道的运动。
短句来源
     The effect of strip cast alloys with different treated methods on sintere d NdFeB magnets properties is presented. The magnetic properties of sintered NdF eB magnets prepared by isothermal annealing strip cast alloys at about 900 ℃ an d hydrogen decrepitation (HD) at about 200 ℃, 0.1 MPa are apparently improved, meanwhile, demagnetization curve is more rectangled.
     通过对速凝带钕铁硼母合金制备烧结钕铁硼永磁体后续工艺的研究,发现对速凝带进行900℃等温热处理,200℃和0.1MPa条件下氢破碎,可以有效地提高磁体的性能,改善退磁曲线的方形度。
短句来源
更多       
  相似匹配句对
     Hydrogen Energy
     浅谈氢能
     The Commercial Hydrogen
     中华人民共和国国家标准 工业氢气
短句来源
     . H-O hydrogen bonding.
     X -射线单晶结构分析表明 ,该化合物的羧基O和配位水分子O通过O…H—O氢键在链方向上和链之间形成网状结构 .
短句来源
     Hydrogen in the Future
     氢能在可持续发展战略中的应用前景展望
     Hydrogen Energy
     浅谈氢能
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  d hydrogen
We analyze the limitations of the thermal compression method and the possibility to reach the superfluid transition in 2D hydrogen gas.
      
From the data, we estimate the thermal contact between 2D hydrogen gas and phonons of the helium film.
      
We also analyze the conditions at which the surface flow of the 2D hydrogen plays an important role in thermal compression experiments.
      
We discuss how the surface flow of 2D H↓ may be traced in experiment thus allowing to study the interaction of the 2D hydrogen with ripplons and surface-bound 3He as well as to observe the superfluidity of the 2D Bose gas of H↓.
      
The O-H?sCl and C-H?sCl intermolecular hydrogen bonds link the molecules in 2-D hydrogen-bonded coordination network.
      
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Transforming the Coulomb problem to harmonic osillator, we construct nonspreading coherent states for the 2D and 3D hydrogen atom and show that the expectation values of the observables in Q. M. follow the classical Kepler orbits in physical space. The use of a fictitious time variable in the associated auxiliary osillator problem plays a crucial role.

通过把库仑问题转换成线性谐振子,可以建立二维和三维氢原子不扩散的相干态,力学量在这些相干态中的平均值给出物理空间中Kepler轨道的运动。在变换为谐振子的空间中引入的非物理时间变量起了重要作用。

The fine structure of energy levels for a 2- D hydrogen atom has been obtained by solving the corresponding 2-D Dirac equation exactly. Owing to the low dimensionality, a3 does not appear in the equation. The 2-D representation has been taken for the simplified Dirac algebra: al = σ1= ,a2=σ2=β=σ3 The polar coordinates have been taken for the 2- Dx, then the Hamitonian and the total angular momentum for a 2- Dhydrogen atom are represenated by Because [H,J3] = 0, the eigenfunctions of J3 are...

The fine structure of energy levels for a 2- D hydrogen atom has been obtained by solving the corresponding 2-D Dirac equation exactly. Owing to the low dimensionality, a3 does not appear in the equation. The 2-D representation has been taken for the simplified Dirac algebra: al = σ1= ,a2=σ2=β=σ3 The polar coordinates have been taken for the 2- Dx, then the Hamitonian and the total angular momentum for a 2- Dhydrogen atom are represenated by Because [H,J3] = 0, the eigenfunctions of J3 are simultaneously also eigenfunctions of H. The eigenfuctions of J3 correspond to eigenvalue Dirac equation HΨ(x)=EΨ(x) isWhere g(p), and f(p) are functions satisfying following equations and boundary conditions When p→0 or ∞, f(p)→0 and g(p)→0 By comparing energy levels of a 2-D hydrogen atom with those of a 3-Dhydrogen atom, it may be seen that decrease in energy levels is caused by reduction of dimensionality, but spacing between energy levels is increased.

对于二维氢原子,其狄拉克方程中不出现x3,对于因x3隐退而简化了的狄拉克代数可取二维表示,于是严格求得能级的精加结构:E=μ/,1+Z2a2/(v+np)2将二维和三维氢原子的能级作比较,可见维度降低导致相应能级降低而能级间隔增大.

By using quantum chemistry Scf—LCAO—MO AM1 method,the Struc- tures of1—D hydrogen—bond system of Polyaniline(P_(An))and water are optimized.The energy bands of P_(An)s.with different H—bond positions arecalculated by means of EHMO—CO method.The influences of the existenceof water and formation of H—bond on the electronic propertier of P_An are revealed,which indicates that conducting ablility will rise af- terH—bond forming.

本文用量子化学 SCF—LCAO—MO—AM1方法,对于水分子与聚苯胺间的氢键体系进行了结构优化.从理论上研究了聚苯胺分子链不同位置形成氢键的可能性以及成键方式,并且运用晶体轨道 EHMACC 方法,对具有不同氢键结构的 P_(An)体系进行了能带结构计算.揭示了水分子存在和氢键的形成对聚苯胺掺杂导电性能的贡献.氢键形成后,能带结构变化表明其有利于导电能力的提高

 
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