The iron core is used to maximize the coupling between the coils (formed by conductors) placed on the stator and rotor, to increase the flux density in the machine and to decrease the size of machine.

铁芯用于使放置在转子和定子中的线圈（由导体构成）之间的耦合最大，以增加电机的磁通密度以及减小电机尺寸。

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The first reading machine was the size of a washing machine.

第一台阅读机的体积和洗衣机一样大。

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At the end of a wooden pier, a squat red machine the size of a dishwasher hums along with the din of nearby cicadas.

在一个木制码头边上，一部洗碗机大小且敦实的红色机器正在伴着蝉鸣的声音嗡嗡作响。

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But the Osborne One was about the size of a sewing machine and weighed twenty-four pounds.

VOA: special.2011.02.15

He has shrunk the electronics dramatically, from a cart the size of a washing machine to just a computer and something the size of a DVD player.

FORBES: Technology

The ATM allows banks to reduce an entire bank branch into the size of a machine.

CNN: Valet parking, robot style

The two Grail probes, called Ebb and Flow, were each about the size of a washing machine.

BBC: Nasa reveals new information about moon probes crash sites