double-header boiler 双筒式水管锅炉 ; 双联箱横水管锅炉
Double Header 双车头火车 ; 连赛两场
EA Sports Double Header EA赛车联赛欧版
double-header coating 双刀头涂布
以上来源于: WordNet
N-COUNT A doubleheader is a sporting contest between two teams that involves two separate games being played, one after the other, often on the same day. (通常在同一天的)连续的两场比赛 [美国英语]
Sometimes "deleted" pages may say "404" or "Not found" on the page, but actually return a 200 status code in the page header; so it's good to use a proper header-checking tool to double-check.
有时“已经删除”页面可能会显示“404”或者“没有找到”，但事实上是在页头显示200状态代码；因此最好使用合适的页头检查工具再三核查。
so it's good to use a proper header-checking tool to double-check.
因此最好使用合适的页头检查工具再三核查。
The paper gives a detailed introduction to the typical structure and manufacturing method of drum, waterwall, burner and waterwall header of the 300mw double arch furnace boiler produced by DBC.
文章以DBC制造的300 MW“W”形火焰锅炉为例，详细地介绍了锅筒、水冷壁、燃烧器和水冷壁集箱的典型结构和制造方法。
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