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鋼鉄
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Steel, английский
- Any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying according to composition and heat treat
- Iron, malleable in at least one rang of temperature below its melting point without special heat treatment substantially free from slag, and containing carbon more than about 0.05% and less than about 2.00%. other alloying elements may be present in signi
- Сталь; стальной
- In a reinforced concrete slab, smalldiameter steel reinforcing bars, usually at right angles to the main reinforcement; intended to spread a concentrated load on the slab and to prevent cracking.
- I-shaped column section; used for piles of a
- H-pile
- Горе ~ вантовое покрытие
- Iron alloy, usually with less than two percent carbon.
- Iron alloy with less than two percent carbon. see also ferromagnetic material; phase diagram. stefan-boltzmann law: relationship governing the wavelength independent rate of emission of radiant energy per unit area. the law relates the total radiation intensity to the fourth power of absolute temperature and emissivity of the material surface. for example, intensity (heat flow) from a copper block at 100 °c (212 °f) is 300 w/m2 (95 btu·ft–2·h–1). (the stefan-boltzmann constant for photon emission = 1.52041 ? 1015 photon·s–1·m–2·k–2). see also blackbody; planck’s distribution law; wien’s displacement law.
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羊毛, японский
鉄, японский
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