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spin temperature
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  自旋温度
     Spin-locking o f central transition in half-integer quadrupolar systems was studied. The particles which occupy the states of |-1/2> and |l/2> may form an isolated sub-system, and it obeys the spin temperature theory in rotating frame. We calculated the intensity of spin-locking signal by density operator approach.
     本文研究了半整数四极体系中心跃迁的自旋锁定,认为占据|-1/2>与|1/2>态的粒子可构成一个孤立的子体系,用密度算符理论证明了旋转坐标系自旋温度理论在这子体系中仍适用。
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  吐丝温度
     The cooling process of 82B wire produced by Baotou Iron and Steel Company under Stelmor cooling line was studied. The spin temperature and the cooling rate of this kind of wire were decided. The study result proves that the reasonable spin temperature of 82B is 800 ℃,and the best cooling rate after rooling ranges from 9.0 to 12.0 ℃/s.
     :针对包钢生产的 82B钢种在斯太尔摩冷却线上的冷却制度进行了研究 ,确定了该钢种应实施的吐丝温度及应采用的冷却速度 结果表明 ,82B合理的吐丝温度为 80 0℃ ,轧后最佳冷却速度范围为 :9 0~ 1 2℃ /s
短句来源
  纺丝温度
     CDP fibers with higher breaking strength were obtained under the process conditions of a large amount of air for crystallization, low temperature dry, lower spin temperature, mildly cooling, proper melt filter accuracy and higher draw and winding speed.
     采用大风量结晶,低温干燥,较低的纺丝温度,缓和的冷却条件及合适的熔体过滤精度,在较高的拉伸、卷绕速度下可制取具有较高断裂强度的四组分阳离子可染聚酯纤维。
短句来源
  “spin temperature”译为未确定词的双语例句
     ELECTRON SPIN RANDOMIZATION OF OPTICALLY PUMPED ALKALI-ATOMS IN THE SPIN TEMPERATURE LIMIT
     自旋交换碰撞占主导时光泵硷金属原子的电子自旋弛豫
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      spin temperature
    Spin temperature during saturation in weak rf fields
          
    We obtain the interesting result that the spin system is not canonically invariant, i.e., it cannot be characterized by a time-dependent "spin temperature."
          
    We propose a nontrivial phase diagram with an estimated critical spin temperature of (0.3±0.1)~μK at zero field.
          
    Observed behavior is consistent with conduction electrons scattering from magnetic impurities, provided that the impurity-induced contribution to spin-lattice relaxation is proportional to the inverse of the nuclear spin temperature in small fields.
          
    The results are found to be in agreement with formulas derived from the spin temperature theory after introduction of some simplifying assumptions in order to be able to deal with low temperatures.
          
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    2,2,6,6-Tetramethyl-4-piperidinylmethacrylate was prepared by ester-exchange reaction between 2, 2, 6, 6-tetramethyl-4-piperidinol and methylmethacrylate. The resulting ester was copolymerized with styrene, and the copolymer was blended with polypropylene in quantities of 1.5-5%. The polyblends thus obtained were spun into fibers with a tenacity of about 4g/d. The modified fibers have a good resistance to weathering, and good dyeing ability with azo-type dispersive dyes. At the same time the spinning...

    2,2,6,6-Tetramethyl-4-piperidinylmethacrylate was prepared by ester-exchange reaction between 2, 2, 6, 6-tetramethyl-4-piperidinol and methylmethacrylate. The resulting ester was copolymerized with styrene, and the copolymer was blended with polypropylene in quantities of 1.5-5%. The polyblends thus obtained were spun into fibers with a tenacity of about 4g/d. The modified fibers have a good resistance to weathering, and good dyeing ability with azo-type dispersive dyes. At the same time the spinning temperature of the polyblends was lowered to around 280℃.

    用苯乙烯和4-(甲基丙烯酸)-2,2,6,6-四甲基哌啶醇酯共聚物与聚丙烯共混,进行纺丝,得到了一种洁白的消光纤维,纺丝温度显著降低,纤维的抗大气老化性能好,并可用偶氮型分散染料染色,改进了聚丙烯纤维的一些缺点。

    The behavior of electron spin randomization of optically pumped alkali-atoms in the spin temperature limit is treated theoretically in this article. Numerical solutions of the relaxation equation of motion are presented. And a generalized slowing down factor as a funtion of the polarization and nuclear spin is analysed in detail.

    本文分析了自旋交换碰撞为主要机制时,光泵硷金属原子的电子自旋弛豫,给出弛豫方程数值解,并对广义减慢因子进行了详细讨论。

    In the paper, the spinning parameters of pitches from petroleum residues for manufacturing carbon fiber is investigated. The effects of the spinning temperature, pressure, speed and the pitch's structures and properties to spinning quality are discussed. The method of choosing the best spinning temperature with controlling melt viscosity at about 10 Pa·s, and the ability of enhancing the pitch's spinnability with raising spinning pressure are suggested.

    本文研究了用于制造碳纤维的石油沥青的纺丝工艺,包括纺丝温度,压力,速度及沥青的结构和性质对纺丝性能的影响。探讨了纺丝熔体的流变学特性。找出了用控制熔体粘度在10Pa·s泊左右来选择纺丝最佳温度的方法,及用增加纺丝压力来提高可纺性的可能性。

     
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