Industrial-process control valves - Part 3-2: dimensions - Face-to-face dimensions for rotary control valves except butterfly valves.是什么意思_Industrial-process control valves - Part 3-2: dimensions - Face-to-face dimensions for rotary control valves except butterfly valves.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句