Petrochemical Deep Processing Version 2018.08.12

Thread Content

Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. True or False: A mechanical seal in which the leakage direction of the medium is opposite to the direction of centrifugal force is an internal-flow type mechanical seal, while a mechanical seal in which the leakage direction of the medium is the same as the direction of centrifugal force is an external-flow type mechanical seal. ( ) Answer: Correct. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. ““My Device, My Home” – Large-scale Original Photo Sharing Event (Part 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 Petrochemical Deep Processing Section [Daily Question] Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1496481