Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An kuma yi amfani da injin ruwa cikin nasara a cikin injunan wanki, misali daga 1914 ta kamfanin Miele. Waɗannan injunan wanki, waɗanda suka kasance gama gari musamman a yankunan karkara har zuwa shekarun 1960, sun haɗa da tubalin katako tare da gicciye mai juyawa wanda aka gina a cikin murfin. Wannan 'tauraron tauraron' an juya shi a cikin daidaitattun, gaba da gaba, ƙungiyoyi ta hanyar pistons guda biyu waɗanda aka haɗa da bututun ruwa. An sami tasirin wanka ta hanyar motsi na wanka a cikin wanka mai cike da sabulu (Lauge) da / ko ruwa.  Tambaya: An kara Lauge zuwa waɗanne sassan inji?
injin wanki