单词	pearlite
释义	pearlite /ˈpəːlʌɪt / noun [mass noun] Metallurgy A finely laminated mixture of ferrite and cementite present in cast iron and steel, formed by the cooling of austenite.The structure now consists of free cementite and pearlite.... Ductility and impact properties are principally determined by the proportions of ferrite and pearlite in the matrix. It is important to note that higher silicon contents can promote pearlite and may increase the nickel requirement. Origin Late 19th century: from pearl1 + -ite1. Rhymes perlite
随便看	placet place value placewoman placfont placid placidity placidly placidness Placidyl placing placing officer placing price placing shot placing stroke placitum plack placket placket hole placobranchid placobranchoid placodal placode placoderm placodioid placodont

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