NOTE: Connection of gear operator to valve stem varies depending on gear operator model, size, and style. The adapter bushing and key may be different from illustration shown.是什么意思_NOTE: Connection of gear operator to valve stem varies depending on gear operator model, size, and style. The adapter bushing and key may be different from illustration shown.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句