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cast iron roll
met.	铸铁轧辊; 铸铁轧辊 (Use is made of this fact in producing large cast-iron rolls, for rolling mills, which have a grey centre but a chilled, and therefore a hard, white iron surface. 利用这一事实生产出的轧机大型铸铁轧辊，其辊心为灰铸铁组织，其辊面由于受到急冷而变硬，成为白口铸铁表面。)
steel.	铸铁辊

cast iron roll : 20 phrases in 4 subjects

Chemistry	1
Metallurgy	16
Steel production	2
Technology	1