chromium

名词 chromium:

1. a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
   同义词：Cr, atomic number 24

1. I am going to rub up the chromium on the car.
   我准备把汽车上的镀铬部件擦亮。
2. A metallurgical coating process in which iron or steel is immersed in a powder of another metal, such as zinc, chromium, or aluminum, and heated to a temperature below the melting point of either.
   渗碳处理一种冶金镀膜工序，在此工序中把钢或铁浸入另一种金属如锌、铬或铝的粉剂里，并加热至这一金属的熔点温度以下

chro.mi.um

n.Symbol Cr （名词）符号 Cr
A lustrous, hard, steel-gray metallic element, resistant to tarnish and corrosion and found primarily in chromite. It is used as a catalyst, to harden steel alloys and produce stainless steels, in corrosion-resistant decorative platings, and as a pigment in glass. Atomic number 24; atomic weight 5.99'; melting point ,890=C; boiling point 2,482=C; specific gravity 7.8; valence 2, 3, '.See table at element
铬：一种有光泽的、蓝灰色的坚硬金属元素。不失光泽，抗腐蚀，最早在铬铁矿中发现。用作催化剂，可加强钢合金的强度和生产不锈钢，可以做防腐镀层和玻璃制品中的颜料。原子序数24；原子量5.99'；熔点,890=C；沸点2,482=C；比重7.8；化合价2，3，'参见 element

来源：
From French chrome * see chrome
源自 法语 chrome *参见 chrome