ðɪ ˈɔɪl, wˌɪtʃ wʌz vˈɜːtʃuːəli nˈɑːŋkəmpɹˈɛsᵻbəl ænd ɹˈɛdili dɪsplˈeɪsəbəl, ɐlˈaʊd ðə lˈɪm dʒˈɔɪnts tə mˈuːv fɹˈiːli æt dˈɛpθs ʌv , wˌɛɹ ðə pɹˈɛʃɚ wʌz .
The oil, which was virtually non-compressible and readily displaceable, allowed the limb joints to move freely at depths of , where the pressure was .