?????????????????????????????? ???? ????????????????????????????????????? ????????????????????? PM2.5 ????????????????????? ????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????? ????????????? ???????????????????????????????????????????
เเอลกอฮอล์ (Alcohol) เเบ่งประเภทตามการใช้งานกี่ชนิด
?????????????????????????????????? ????????? ???? ?????????????? (Ethyl Alcohol) ?????????????????????????????????????????????????????????????????????? ???? ????????? ??????????????????????? ?????????????????????????????????????????????????????????????????????????????????????????????? ???? ???????????????? ????????????????????