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English Translations » 炼制(催化焦化深加工) » Practice questions on May 30, 2017; replies will earn 0–6 po

Practice questions on May 30, 2017; replies will earn 0–6 points (no scoring for replies sent more than 1 day after posting). Thank you for your replies

2017-05-30View Original

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This post was last edited by percy on 2017-5-30 11:40. Multiple-choice question (no points for incorrect answers or incomplete responses). The phenomena indicating normal combustion of fuel in the furnace are: (ACD) A. Complete combustion, with a bright furnace interior； B When burning fuel oil, the flame is dark red ； When burning fuel gas, the flame is blue-white in color ； The smoke emitted from chimney D is colorless or light blue. No rating will be given for replies within 1 day of posting; thanks for your reply

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Translated at 2026-07-21 05:07:04

Original: https://bbs.hcbbs.com/thread-1784029-1-1.html

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