1·Like all metals, these react with other elements by giving up electrons to form positively charged ions.
像所有的金属一样，铁原子与其他元素反应，释放电子形成带正电的离子。
2·Today we continue our report on the group of chemical elements known as rare earth metals.
今天我们将继续报道稀土金属类的稀有化学元素。
3·The substances in question include a bunch of rare-earth metals and a few other elements which—used a pinch here, a pinch there—enhance the way many industrial materials function.
讨论的对象包括了一堆稀土金属以及用于提高工业材料功能的少量元素。
4·These symbols have been in use since the Renaissance [1] also denoting elements in alchemy, specifically the metals iron and copper.
文艺复兴以来这些符号就在炼金术中得到使用，表示某种元素，特别是金属铁和铜。
5·Iron is one of the largest elements in the earths crust as well as it is highly active metals.
铁是地壳中含量最多的元素之一，同时它也是氧化还原性很强的活泼金属。
6·Metals are elements that can be defined by their properties, such as ductility, toughness, malleability, electral and heat conductivity, and thermal expansion.
金属是根据可锻性，刚性，可塑性，电热导通性以及热膨胀度等特征来定义的多种元素的复合物。
7·Metals are elements that generally have good electrical and thermal conductivity. Many metals have high strength, high stiffness, and have good ductility.
金属就是通常具有良好导电性和导热性的元素。许多金属具有高强度、高硬度以及良好的延展性。
8·Of the 100 elements available to us, about three-quarters can be classified as metals. And, about half of these are of at least some industrial or commercial use.
在我们可获得的100种元素中，约四分之三可归入金属，而这其中约二分之一至少具有某种工业或商业用途。
9·These two elements, part of a group called the rare-earth metals, have unusual configurations of electrons orbiting their nuclei, and thus unusually powerful magnetic properties.
在这两种同属稀土金属的元素中，围绕原子核旋转的电子排列方式很不寻常，因此具有异乎寻常的强大磁性能。
10·Nonferrous Metal elements other than iron called nonferrous metals .
有色金属元素不同于称为铁的有色金属。