- 辊筒: roller
- 炭: charcoal
- 辊筒: [机械工程] roller◇辊筒磨光 drum sanding
- 炭黑: acetylene black; black carbon; black pigment; carbon blacd; carbon black;charcoal black; carbon ink; carbon soot; coom; flame black; gas carbon; jet black; lamp black; lampblack; smoke black; smut; soot carbon
- 槽辊筒: engraved cylinder
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