英语词汇“are these self-filling pens”的翻译、意思、用法、释义-英汉汉英双解词典

单词	are these self-filling pens
释义	are these self-filling pens 这些是自动注入式的笔吗
随便看	slag eye slag fall slag fertilizer of electric furnace slag fertilizer of open hearth furnace slag fertilizer of revolving furnace slagfest slagfests slag fiber slag fibre slag filament slag film slag filtration process slag flow slag fluidity slag flushing slag flushoff slag-fly ash lightweight aggregate slag foam concrete slag foaming slagformation slag formation slag-formation slag-formation period slag formation solid sulfur slag formation speed