<prompt> Eyaziwa ngokuthi uhlelo lweYarrow-Schlick-Tweedy, luhlobo luni lwenjini olwalushintshiwe futhi lwathandwa phakathi komkhakha wama-Olympic wemikhumbi ehamba olwandle ngaphambi komshini wokuphehla ugesi? Njengoba kunikezwe umbuzo odlule, bhala umongo onempendulo yawo. Kungaba imisho engu-1 kuya kwengu-20. Umongo:  <response>: Kuyinto ukunwetshwa okunengqondo kwenjini ehlanganisiwe echazwe ngenhla ukuhlukanisa ukwanda ngezigaba ezengeziwe ukwandisa ukusebenza kahle. Umphumela uba injini yokwanda okuningi. Izinjini ezinjalo zisebenzisa izigaba ezintathu noma ezine zokunwebeka futhi zaziwa ngokuthi izinjini zokunwebeka kathathu noma ezine ngokulandelana. Lezi zinjini zisebenzisa uchungechunge lwama-cylinder anobubanzi obandayo. La masilinda aklanyelwe ukuhlukanisa umsebenzi ube izingxenye ezilinganayo esigabeni ngasinye sokwandiswa. Njengoba kunjalo ngenjini yokwandiswa kabili, uma isikhala sikhulu, khona-ke amasilinda amabili amancane angasetshenziselwa isigaba sokucindezela okuphansi. Ngokuvamile ama-multiple expansion engines ayenamasilinda ahlelwe ngomugqa, kodwa kwakusetshenziswa amanye ama-multiple expansion engines. Ngasekupheleni kwekhulu le-19, uhlelo lokulinganisa lwe-Yarrow-Schlick-Tweedy lwalusetshenziswa kwezinye izinjini zasolwandle ezandisa kathathu. Izinjini ze-Y-S-T zahlukanisa izigaba zokunwetshwa kwengcindezi ephansi phakathi kwamasilinda amabili, elilodwa ekugcineni kwenjini. Lokhu kwavumela i-crankshaft ukuba ilinganiswe kangcono, okwaholela enjinini ebushelelezi, ephendula ngokushesha eyayisebenza ngokudlidliza okuncane. Lokhu kwenza ukuthi injini ene-triple expansion ene-4-cylinder ithandwe kakhulu emikhunjini emikhulu yabagibeli njenge-Olympic class, kodwa lokhu ekugcineni kwathathelwa indawo yinjini ye-turbine engenawo nhlobo ukudlidliza. 