So when the fibre is drawn the researchers apply a powerful electric field to ensure that the molecules in the plastic all line up in the same direction as the fibre cools.

当纤维提取出来后，研究人员会对其施加一个强大的电场，以保证纤维冷却后，塑料的分子都按照同一方向排列。

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It contains two parts: calculation about the equivalent charge of the unit length line and calculation about the electric field caused by these charge.

它主要由两部分组成，即计算单位长度导线上的等效电荷，及计算由这些电荷产生的电场。

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The fault can be on-line detected by measurement the electric field distribution along the composite insulator.

采用电场分布测量的方法可对这类故障进行在线检测。

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Again, in an electric field line splitting observed, the intensity of the line splitting varying with the intensity of the applied electric field.

结果也证明谱线在电场中也会分裂，而且其分裂程度,随电场强度变化而变化。

麻省理工公开课 - 固态化学导论课程节选

And when a magnetic field line vibrates, he says, it makes an electric field which excites current in wires.

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