??????????
2 ??.????. (4.4 ??.) ?????????? ?? ????? ????
Common symbols	m
SI ???????	??.????
Extensive ?	yes
Conserved ?	yes

?????????? ????? ?? ??????????? ???????? , ????? ????????? ??????. ??? ?? ????? ???? . ?????????? ????? ????????? ?????? ??????? ????. ?????? ??????? ?? ??????? ???????????? ???? ??????? ??????????????. ???? "?????" ???? " ????? " ????? ?? ????????? ??????? ????????????? ??????? ??????. ??????? ????? ??????? ????? ????? ???? ???? ????? ???????????? ??????????. ????? ???? ?????????? ?????????? ??????? ???? ????? ??????????. ???????????? ???????? ???? ???????? ??????????. ????? ???????? ????? ??????? ????? ????????????? ?????????? ?? ???????? ?????? ??????????????????.

? ?????? ??????? ???????? ????????? ?????????? ???? . ?????? ?????????? , ?????? ?????????? ??????????? ?????????. .