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English Translations » 历史存档[信息] » One question per day; those who answer correctly receive 6 w

One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 453

2016-03-04View Original

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Single-choice question: The flow meters for acetylene and hydrogen chloride gases are orifice plate flow meters; such flow meters are （ ） type of flow meters. A Constant cross-section, variable pressure difference B Constant pressure difference, variable cross-section C Variable cross-section, variable pressure difference D Variable pressure difference, constant cross-section Answer: A Constant cross-section, variable pressure difference
Reply #22016-03-04
A Constant cross-section, variable pressure difference~~~~~~~~
Reply #32016-03-04
The flow meters for acetylene and hydrogen chloride gases are orifice plate flow meters, and these flow meters are of (A) type. A Constant cross-section, variable pressure difference B Constant pressure difference, variable cross-section C Variable cross-section, variable pressure difference D Variable pressure difference, constant cross-section

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Translated at 2026-07-21 00:45:40

Original: https://bbs.hcbbs.com/thread-1563561-1-1.html

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