A power choke or transformer has an iron core.

扼流器或变压器有一个铁芯。

A new moon-rock study suggests the satellite has an iron core.

月球可能比科学家原先认为的更要“地球化”。 一份最新的月石研究报告称，月球有一颗“铁心”。

Its moving iron core transformer structure is most widely used.

动铁芯式变压器结构，应用最广。

Iron core chokes are coated in a clear lacquer to prevent rust.

铁芯电感外层涂有漆料以防止其生锈。

Mercury's huge iron core takes up more than 60% of the planet's mass.

水星巨大的铁核占了其自身重量的60%多。