天体物理与天文学的实验在远距离上有严格的限制(对轴子存在)，但是短距离上并没有。
The experiments in astrophysics and astronomy give limits [for the axion's existence] over long distances very stringently, but not for the short distances.
分形理论已广泛应用于各个领域，如：数学、物理、化学、材料科学、生物与医学、地质和地理学、地震和天文学以及计算机科学等。
Fractal theory is extensive applied to many fields, such as mathematics, physics, chemistry, material science, biology and medicine, geography, earthquake and astronomy, computer science and so on.
本文评述X射线天文学探测技术与产生X射线的物理依据。
This paper presents a review of the techniques in X-ray observation and physical arguments of the production of X-rays.
物理与哲学、验物理-天文学、论物理-气体动力学、对论与重力理论、论物理-重力理论相对论、态物理、能物理。
Physics and Philosophy, Experimental Physics and Astronomy, Theoretical Physics and thermodynamics, Relativity and Gravity, Gondens-matter Physics, High-energy Physics.
物理与哲学、验物理-天文学、论物理-气体动力学、对论与重力理论、论物理-重力理论相对论、态物理、能物理。
Physics and Philosophy, Experimental Physics and Astronomy, Theoretical Physics and thermodynamics, Relativity and Gravity, Gondens-matter Physics, High-energy Physics.
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