Understanding alien languages in GR is skill based, with levels of 1 to six, roughly corresponding to the number of syllables the reader/listener can understand. A skill level of one in Vuchelk’shi Modern would allow our humans to utter simple phrases, while a level two would allow compound words and so forth. There is no separate skill for reading/writing a language. A non-combat search roll or simple Engineering-Ship, Vuchelk’shi roll would reveal the outer door manual activation controls.