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little dynamo with his | |
In the air, it is invisible but has a distinct unpleasant smell, and in high concentrations is both and irritant and corrosive. It can cause pain and burns to the airway and injuries to the eyes. However, it is lighter than air, so does not remain on the ground as long as some other dangerous gases do. อ่านต่อได้ที่ >> โรงเรียนบ้านหนองจอก นานาสาระ >> ความดัน | |
ผู้ตั้งกระทู้ little dynamo with his (metha2110-at-gmail-dot-com) :: วันที่ลงประกาศ 2022-03-21 18:39:22 |
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