Kupsyinjika kwa API 5CT mafuta opangira mafuta m'chitsime cha mafuta: kuonetsetsa kuti casing yomwe imalowa m'chitsime imakhala yosalekeza, osati yosweka kapena yopunduka, choyikapo chiyenera kukhala ndi mphamvu inayake, yokwanira kukana mphamvu yakunja yomwe imalandira. Chifukwa chake, ndikofunikira kusanthula kupsinjika kwa ...
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