1·Whenever there's a Nick or hairline crack in an insulation sheath, the electrical field in the underlying copper subtly shifts.
在绝缘套上只要出现缺口或者毛细裂缝，线缆里的铜周围的电场就会轻微改变。
2·Thousands of cells combine to generate the 5 millivolts per centimeter electrical field the fish USES.
数千个细胞加起来可产生每厘米5毫伏的电场。
3·This technique uses electrodes to record the electrical field produced by brain activity
这种技术利用电极记录脑部活动产生的电场。
4·The galvanometer is placed on a leaf off the plant, and it records any changes in the electrical field of the leaf.
把检流检置于已从植物上脱落的叶片上，它就可以记录叶片的电场中的任何电荷。
5·Objective: To approach the feasibility of the three-dimensional positioning and navigation with regular catheter electrodes in intracavitary with a low-frequency electrical field.
目的：探讨基于低频电场方式进行心腔内三维定位导航及心内膜重构的可行性。