Kungani Ukhetha i-45 ° Obtuse Street Elbows yephrojekthi Yakho Yokwakha Okulandelayo?

Kungani Ukhetha i-45 ° Obtuse Street Elbows yephrojekthi Yakho Yokwakha Okulandelayo? Isingeniso ku-45 ° Obtuse Street Elbows Endaweni yokwakha nokwakhiwa kwezakhiwo, ukukhethwa kwezinto zamapayipi kungathinta kakhulu ukusebenza kahle nokusebenza. Phakathi kwalezi zingxenye, * * * * 45 ° obtuse onololwane lomgwaqo ** avele ukwakheka kwabo okuhlukile nokusetshenziswa okuhlukahlukene. Lokhu kufakwa akuyona i-c