A magnet with flux created by electric current passing through a coil; direct current is usually used and the coil is wound around an iron core'. Electromagnets are used to operate print hammers in impact printers

由通过线圈的电流产生磁通量的一种磁体,通常使用直流电流,而且线圈是绕在一个铁“芯”上的。在击打式打印机中,电磁体可用来控制打印锤的操作。

属类：综合句库--

A contingent of militant ideological workers able to persuade and act as a magnet for others

有战斗力,有说服力,有吸引力的思想工作队伍

属类：综合句库--

The field around a permanent magnet or wire carrying a steady direct current is stationary, while that around an alternating current or changing direct current is continuously changing.

在永磁体或有稳定的直流电通过的导线周围的磁场是静磁场,而在交流电或变化的直流电周围的磁场则不断在变化。

属类：自然科学-物理-

This disco is a magnet for young people

这家迪斯科舞厅经常吸引大批年轻的顾客

属类：综合句库--

It is called the north pole of the magnet , which is usually marked N.

这就叫磁体的北极,通常用N表示。

属类：工程技术-科技英语-

This disco is a magnet for young people.

这种迪斯科舞厅对青年人很有吸引力。

属类：综合句库--

A lump of iron or steel placed near a magnet arranges its molecules in an orderly manner and acts as a magnet itself, even though it is not touching the influencing magnet.

置于磁体附近的一块铁或一块钢,即使它没有触及该施感磁体,也会使其分子整齐地排列起来,从而本身也成了一块磁铁。

属类：工程技术-科技英语-

Development of Injection Moulded PVC Bonded Magnet

注射成型聚氯乙烯粘结磁体的研制

属类：行业术语-中文论文标题-

Forbidden City is a great magnet for foreign tourists

紫禁城对外国旅游者来说是个有巨大吸引力的地方。

属类：综合句库--

A common galvanometer consists of a light coil of wire suspended from a metallic ribbon between the poles of a permanent magnet .

最普通的电流计包括一个小线圈,悬挂在永磁铁两极之间的金属带上。

属类：工程技术-机械与工具-