Unugga fal-celinta isku-darka kuleyliyaha (hydrothermal synthesis) waxaa loo isticmaali karaa in lagu tijaabiyo isla koox-warbaahineed oo ay ku jiraan xaalado kala duwan ama kooxda kala duwan ee warbaahinta isla xaaladaha.
Cutubka reactor synthesis hydrothermal wuxuu ka kooban yahay jirka golaha wasiirada, nidaamka wareega, nidaamka kuleylka iyo nidaamka xakamaynta.Jidhka golaha wasiiradu waxa uu ka samaysan yahay bir aan lahayn.Habka wareeggu wuxuu ka kooban yahay matoor, sanduuqa geerka iyo taageerada wareegta.Nidaamka xakamaynta wuxuu inta badan xakameynayaa heerkulka golaha iyo xawaaraha wareega.