iron core

基本解释

The planet's magnetic field is generated by the motion of molten iron flowing around a superhot, solid iron core.
地球内部的熔铁围绕其核心的超高温固体铁核流动，由此产生了地球磁场。
The notion that the moon has an iron core with a layer of molten iron surrounding it isn't new. But evidence so far has been indirect.
月球里有着周围带有融化铁层的铁芯的这个概念并不是新的。但到目前为止，这些证据都是间接的。
Our understanding of planet formation suggested that precious metals such as gold and tungsten should have moved into Earth's iron core long ago, due to the affinity they have for bonding with iron.
我们对地球形成的理解认为如黄金和钨等贵金属在很久以前因它们与铁粘合的吸引力而移到了地球的铁核心。令人惊讶的是，在地球表面和下面的地幔层里贵金属反而比较丰富。

The magnetometer will record what, if any, magnetic field the asteroid has, thus revealing whether it was ever part of an object large enough to have possessed the molten iron core needed to generate such a field.
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In fact, Earth has enough iron at its core to produce 2 billion Death Stars—a veritable Death Galaxy.
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铁芯
铁心
Results show that the electric machines designed by using the presented package has shorter iron core and better Performance.
结果表明：用这个系统设计的电机具有较好的性能及较短的铁心长度。
经济学
铁矿石
Since 2003, the performance of International Dry and Bulk market was very powerful. The demand based on the importation of China's iron core and Japan's coal rises sharply, while trade of corn and minor bulk is also very active.
国际于散货航运市场自2003年以来表现十分强劲,以中国进口铁矿石和日本进口煤炭为核心的海运需求空前高涨,谷物和小宗散货海运贸易也十分活跃,从运力供给看,历史罕见的压港和低增长的新交船使运力供应高度紧张,而究其原因,此番市场行情高峰从根本上说是国际干散货航运市场上需求的增长不能被及时满足所造成的。
动力与电气工程
铁心
铁粉心