短語詞組短語cold deformation reduction 冷軋變形量cold rolling reduction ratio 冷軋壓下率cold rolling reduction rate 冷軋壓下率cold rolling reduction 冷軋壓下cold rolled reduction ratio 冷軋壓下率total cold rolling reduction rate 冷軋總變形量single -stand reversing cold-reduction mill 單機座可逆式冷軋機double cold reduction mill 再冷軋用軋機;二次冷軋機Cold reduction of tube 管材冷減徑 返回 cold reduction