?纣????????????????????????
6??1500??8000 21??
6??1500??8000 42??
6??1500??8000 35??
6??1500??8000 21??
8??2000??8000 64??
????纣?????????????????
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??δ??????????????????"??????????????????????????????????г??????????????????????Я???????????????
???0.7*1.219*2??q345qe?纣???????????????????繫??
