单词	steel
释义	steel Any of a number of alloys consisting predominantly of iron with varying proportions of carbon (up to 1.7%) and, in some cases, small quantities of other elements (alloy steels ), such as manganese, silicon, chromium, molybdenum, and nickel. Steels containing over 11–12% of chromium are known as stainless steels. Carbon steels exist in three stable crystalline phases: ferrite has a body-centred cubic crystal, austenite has a face-centred cubic crystal, and cementite has an orthorhombic crystal. Pearlite is a mixture of ferrite and cementite arranged in parallel plates. The phase diagram shows how the phases form at different temperatures and compositions. Steels are made by the basic-oxygen process (L–D process), which has largely replaced the Bessemer process and the open-hearth process, or in electrical furnaces. Phase diagram for steel
随便看	longitude longitudinal wave Lorentz group Lorentz transformations Lorentz, Hendrick Antoon Lorentz-Fitzgerald contraction Lorentz-Lorenz equation Loschmidt's constant loudness loudspeaker low frequency low-dimensional system lowering of vapour pressure lubrication lumen luminance luminescence luminosity luminous exitance luminous flux luminous intensity lunar eclipse lunation lux Lyman series

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。