Double valve (one built-in, another at outside): used in angle blade, ripper to realize lift, hold , lower, float for the blade cylinder and to realize lift, hold, lower for the ripper cylinder.是什么意思_Double valve (one built-in, another at outside): used in angle blade, ripper to realize lift, hold , lower, float for the blade cylinder and to realize lift, hold, lower for the ripper cylinder.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句