outer field generator 外磁场发电机
outer field action 外场作用
outer-field-driven 外场驱动
calibration in the outer field 外场标定
outer flow field 外流场
Clearly, geophysicists who seek to explain and forecast changes in the field must understand what happens in the outer core.
显然，试图解释和预测磁场变化的地球物理学家必须了解外核发生了什么。
The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.
地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的；当铁水激增，就会发生磁暴。
Because he had already lost vision in his left eye from his stroke in 1906, he had clear vision only in the temporal (outer) half field of his right eye.
1906年的中风已经使他的左眼失明，因此只有他右眼颞部(外部)的半部分还有清晰的视觉。
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