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English Translations » 甲醇及净化技术 » Basics of Purification 2018-11-3

Basics of Purification 2018-11-3

2018-11-03View Original

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The advantages and disadvantages of mechanical seals are ( ) A. Low leakage rate (usually 1% of that of packing seals) B. Long service life (1–2 years) C. Low frictional power consumption (10–50% of that of packing seals) D. Reduced requirements for shaft machining precision
Reply #22018-11-03
A Low leakage rate (usually 1% of that of a packing seal) B Long service life (1–2 years) C Low frictional power consumption (10–50% of that of a packing seal)
Reply #32018-11-03
A Low leakage rate (usually 1% of that of a packing seal) B Long service life (1–2 years) C Low frictional power consumption (10–50% of that of a packing seal)
Reply #42018-11-03
A. Low leakage rate (usually 1% of that of a packing seal) B. Long service life (1–2 years) C. Low frictional power consumption (10–50% of that of a packing seal) D. Reduced requirements for shaft machining precision

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Translated at 2026-07-21 05:45:10

Original: https://bbs.hcbbs.com/thread-2128152-1-1.html

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