格式:pdf
大?。?span class="single-tag-height">16.8MB
頁數(shù): 20頁
1 ?????????? ??????? ????????????????????????? 20 ??????? 10 ???? ??? 30 ????????? 1 .5m 3 ?????????????? 2 :1:3 ??? 2 ????? 0.5 m 3 ???? 0.5 m 3 ????? ????????????? 1000mm ????????????? ??????????????????????????? 60??????????? ???????????????????? 1 /3 ??????????? 150mm ?????? ?????????????? ???????? 1/3 ??? 1/2 ??????????? 150mm ? ??????????????????? 350mm ???? 400mm ?