The article is about USES circuit instead of 8h iron inductance, enhance EMC of telephone, and depress costing of telephone.

本文介绍在电话机中用电子电路代替传统的8 H铁芯电感，可提高电话机的电磁兼容性，并降低电话机的生产成本。

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This paper designed the charge circuit and protection circuit of phosphoric acid iron battery, and verified the effectiveness of the charge circuit.

本文主要根据锂电池的特性，设计了磷酸铁锂电池的充电电路和保护电路，并通过实验验证了本文设计的充电电路的正确性。

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Apply to the high-grade circuit boards wave soldering, welding and hot dip high-grade iron tin wire.

适用于高档电路板的波峰焊、热浸焊和高档引线搪锡。

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Some of those training at Bordeaux's school and pumping iron on the beach may one day make it onto the professional wrestling circuit, earning the right to wear the wrestler's traditional pre-fight regalia.

CNN: Fighting talk: Why wrestling is booming in Senegal