以下为句子列表:
英文: A Bose-Einstein condensate—a gas so cold that the atoms have lost their individual identity—can act on sound like an expanding universe does on light, either by literally flying apart or by being manipulated using a magnetic field to give the same effect.
中文: 一团玻色–爱因斯坦凝聚(一种冷到原子会丧失其个体性的气体),可以像膨胀的宇宙对光的作用一样,来对声音作用,不管是令其飞散,或是用磁场来操纵,都可以得到同样的效应。
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英文: A class of exact solutions of the Dirac equation are obtained for an electron in the electromagnetic field of a wave guide formed by two pairs of hyperbolic cylinders.
中文: 摘要研究了位于由两对双曲柱面构成的波导管电磁场里的单电子的性质,得到了单电子在场中狄拉克方程的新一类精确解;计算了极化算符的本征函数。
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英文: A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the magnetic field of Earth.
中文: 指南针用于确定地理方向的设备,通常包括一个或多个水平安装或悬挂的磁针,可在枢轴上自由活动直到与地球磁场在一条线上
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英文: A major discovery unfolded over the past five years as it became possible for scientists to compare accurate maps of the geomagnetic field taken 20 years apart.
中文: 过去五年里,由于科学家终于能够比对相隔20年所观测到地球磁场的准确分布,因而有了重大发现。
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英文: (All living beings and material have faint magnetic field extremely, the magnetic field to wind by electron atomic nucleus produce when rotating.
中文: 所有的生物及物质均带有极其微弱的磁场,这种磁场是由电子绕原子核旋转时产生。
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