The utility model relates to a forge and press combined type central water-cooled oxygen lance spray head assembly.

本实用新型涉及一种锻压组合式中央水冷氧喷枪喷头总成。

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Each device consists of a single, retractable lance and a drive mechanism equipped with separate air and water nozzles.

每一套设备都包括有单根可伸缩杆和一个带有单独的空气通道和水喷嘴的驱动机械。

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Water cooled lance and lance manipulator have both replaced the hand lance. The lance manipulator is an efficient and economical tool to inject oxygen and solid materials into EAF.

水冷喷枪和喷枪机械手已取代了手动喷枪，喷枪机械手是一种向电弧炉喷氧和固体燃料高效而经济的方法。

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The jouster, wearing only white clothing (like the rest of the crew), stands on a wooden platform (called a tintaine) that extends off the boat about 3m above the water, carrying a 70cm tall shield and a 2.8m lance with which to knock the opponent into the river or canal below.

BBC: Water jousting in southern France