1. example saving use of minerals. In some mining mineral resources that may be of various kinds. Therefore, it should try to either save all kinds of money and reduce the wasteland.2. mineral sources, surveys should be intensive mineral resource exploration to cover nationwide to benefit in planning the use of auxiliary.3. the use of other types of mineral replacement. Try to find other alternative mineral ore used was aluminum instead of steel, such as the use of.4. bring the ore that was used and then used again to exploit to the fullest the mineral should be used and used again, such as aluminum containers, appliances, some out of use can bring back a new surface.
การแปล กรุณารอสักครู่..