求翻译：磁力线的概念，无疑有助于建立电磁感应的直观形象概念。但是应该注意到如果拘泥于这种概念，就把时间和空间的概念绝对化了，只能反映相对速度远小于光速时的近似结果。是什么意思？

The concept of magnetic field lines, and will no doubt help establish a visual image of the concept of electromagnetic induction. It should be noted that the and if rigidly adhere to this concept, put the concept of time and space absolute only reflect the approximate result when the relative speed

magnetic field lines, there is no doubt the concept helps to establish magnetic visual image concepts. However, it should be noted that, if we stick to this concept, the concept of time and space can only be absolute, and relative velocities reflect light much less than the approximate results.

The magnetic line of force concept, is helpful without doubt to the establishment electromagnetic induction direct-viewing vivid concept.But should note if rigidly adheres to this concept, has carried to an extreme the time and the spatial concept, only can reflect the relative velocity is smaller t

Magnetic line concept, undoubtedly contributed to the establishment of Visual image of magnetic induction concept. However it should be noted that if you stick to this concept, the concept of absolute time and space, only reflect relative speeds much less than the speed of light time approximate res

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