yebob wrote:
1.15也有,1.1的也有, 很多種


825731 wrote:
我一般按0.95算.没有错的!
825731 wrote:
1.15或1.1就大于水的密度了.会沉于水.PP应该说不会吧
PP应是浮于水的.
lihn918 wrote:
我这一份资料上写的是0.91!








825731 wrote:
1.15或1.1就大于水的密度了.会沉于水.PP应该说不会吧
PP应是浮于水的.
我一般按0.95算.没有错的!
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