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1. Please hide your replies; editing after posting is ineffective! Delete directly without hiding! 2. Hiding method: http://bbs.hcbbs.com/thread-492556-1-1.html 3. 5 points for correct answers; there is a reward for everyone who participates. Judgment: 1. Anodic protection involves using changes in current to create a passivation film on the metal surface with high corrosion resistance, thereby putting the metal surface in a passive state. ( )2. Using ceramic ball arches with a high porosity as the packing support in the drying tower allows for a more even and reasonable distribution of forces at the bottom of the tower. ( ) Right Right
Reply to 1# A Shi: Wrong, right
Reply 1# A Shan Right Wrong
Reply 1# A Shie Yes, that’s right
Reply 1# A Shie Yes, that’s right