题目内容
(请给出正确答案)
[单选题]
电除尘器设置进、出气烟箱的作用是()。
A.改善电场中气流的均匀性;
B.减小烟气流速的阻力损失;
C.避免粉尘沉积在进、出口管道内壁上;
D.提高电除尘效率。
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A.改善电场中气流的均匀性;
B.减小烟气流速的阻力损失;
C.避免粉尘沉积在进、出口管道内壁上;
D.提高电除尘效率。
第4题
A、0.1mm,0.03mm,0.02mm;
B、0.1mm,0.05mm,0.02mm;
C、0.2mm,0.02mm,0.05mm;
D、0.05mm,0.02mm,0.03mm。
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