专英考点

Phase transformation temperatures 相转变温度

Magnetic permeability 磁导率

When e paramagnetic or ferromagnetic core is inserted into a coil,the inductance is multiplied by μr compared with the inductance of the same coil with an air core.

当顺磁性或铁磁性芯被插入到线圈中时，磁感应强度是空气芯时的μr倍。

相对密度 Relative density

热导率 thermal conductivity

相变是一种物理性质，并且物质存在四种相：固相、液相、气相和等离子体。 Phase is a physical property of matter and matter can exist in four phases:solid,liquid,gas and plasma.

Unit 6

Magnetic resonance imaging 磁共振成像

The average population growth rate of the world世界平均人口增长速率 Projection are that global energy use will grow by 1.7% annually until 2025,which is a faster rate than the world population growth rate. 据预测，到2025年，全球能源使用每年将增长1.7%，比世界人口增长的速度还要快。

经济指数economic index

国民生产总值 gross national product

材料与社会是相互联系的，并且我们应当认为材料科学工程的发展与影响人类生存条件的全球社会问题存在密切的关系，这是唯一理性的看法。

Materials and society are interlinked, and it is only rational that we should see a close relation between the MSE research agenda and societal issues that affect the human condition on the globe.

Unit7

Conduction band 导带

The ion lattice 离子晶格

Alloys specially designed for highly demanding applications,such as jet engines,may contain more than ten elements.

为一些高性能场合应用，如喷气式发动机，特殊设计的合金可以包含10种以 上元素。

电子结构 electrical structure

核电荷 nuclear charge

金属有时被描述为由游离电子团包围的正离子晶格。

Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons.

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