A-A+ _____ will be used to blow away the combustion products from the tube surfaces. 2020-09-18 20:41:15 资格考试 阅读 问题详情 A.The blow down valveB.The scum valveC.The air release cockD.The soot-blower请帮忙给出正确答案和分析,谢谢! 参考答案 查看解答