是和房内的体积有关. The formula is the same as....

used in the table. Simply find out the cubid ft of the space by: aera x ceiling hight, and use this valume in the table.

所有跟帖： 

• used in the table. Simply find out the cubid ft of the space by: -煮鸡蛋- ♂ (0 bytes) () 07/16/2019 postreply 14:12:29

• aera x ceiling hight, and use this valume in the table. -煮鸡蛋- ♂ (0 bytes) () 07/16/2019 postreply 14:13:06