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In the same year argao made the first electromagnet . 同年安高制造了第一個(gè)電磁體。 An instrument of the second type makes use of a metal reed kept in vibration by an electromagnet . 還有一種類似的裝置,由電磁鐵維持金屬簧片不斷振動(dòng)。 An instrument of the second type makes use of a mental reed kept in vibration by an electromagnet . 還有一種類似的裝置,由電磁鐵維持金屬簧片不斷振動(dòng)。 The electromagnets would require only an initial power input to start the current in their coils . 這種電磁鐵只要饋入一個(gè)初始功率就能起動(dòng)線圈里的電流。 Operated by an electromagnet or using electromagnets 借助或使用一個(gè)(或多個(gè))電磁體而操作的。 My phone does all that . - superconducting electromagnet 我的手機(jī)就有這些功能-還有超導(dǎo)電磁力 - my phone does all that . - superconducting electromagnet -我的手機(jī)就有這些功能-還有超導(dǎo)電磁力 The utilization of lifting electromagnet in coal processing plant 鋼纖維混凝土在橋面鋪裝中的應(yīng)用 Electromagnet fluid damping galvanometer 電磁液體阻尼振動(dòng)子My electromagnet doesn t work 我的電磁鐵不起作用怎么辦!
a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off.
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