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。
Campus combined type construction produces many inside courtyard.
高校校园组团式建筑产生了许多内庭院。
This paper introduces the use, construction, wonk principle and using effect on the air noiseless filter of combined type.
本文介绍组合式空气消声过滤器的用途、结构、工作原理和使用效果。
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