运用毕奥萨伐尔定律和椭圆参数方程，计算出椭圆环电流中心的磁感强度。

The magnetic induction intensity at the center of elliptic current ring is derived based on the Biot-Savart law and elliptic parameter equation intensity.

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日本研究理事会生产的电池是圆筒状的，中心里的钠由一个允许钠离子通过而产生电流的陶制薄膜分开。

The NGK battery is a cylinder with sodium in the center, separated from molten sulfur by a ceramic membrane that allows the passage of sodium ions to create the battery's current.

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所有接入的、消耗的、产生的以及过往的电流在地区配电中心的屏幕上都能看得一清二楚。

All incoming, consumed, produced and passing electricity is clearly visible on the panel (a large block display) of the regional dispatch center.

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