palaolaj angolul

shale-oil▼noun
[UK: ˈʃeɪl ɔɪl] [US: ˈʃeɪl ɔɪl]

photogene [photogenes]▼noun
[UK: fˌəʊtəʊdʒˈiːn] [US: fˌoʊɾoʊdʒˈiːn]

photogen▼noun
[UK: fˈəʊtəʊdʒən] [US: fˈoʊɾoʊdʒən]