Manifold shall have safety pressure relieve valve, pressure regulators, and pressure gauges indicating inlet and outlet pressure , bleed valve (vent valve) and pigtail for cylinder connections.是什么意思_Manifold shall have safety pressure relieve valve, pressure regulators, and pressure gauges indicating inlet and outlet pressure , bleed valve (vent valve) and pigtail for cylinder connections.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句