Refinery Explosions Raise New Warnings About Deadly Chemical
Chemical experts say recent refinery explosions could have been far more devastating if deadly hydrogen fluoride was released. Some are calling for a ban on the chemical.
Đọc thêm tại NPR
at July 19, 2019 at 04:00PM
Health & Science
Thứ Sáu, 19 tháng 7, 2019
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