lee Pae 2

in #zappl • 8 years ago

????????????????????? ----------------- ???????? ??????? ???????? ?????????????????? ????????????? ?????????????????? 10????????1???????? [8"�12"?????]???????? ????????????? 10'�12"/8"=15???? 10'� 12"/12"=10 ???? 15�10=150 ???? ????????

8 years ago in #zappl by
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