A smoky haze and the odour of burning metal or electronics filled the plane.

烟雾和混合电子味的金属燃烧的味道充斥整架飞机。

youdao

For example, on paper, wood or cardboard the etching would occur as carbonization (burning) while the surface of a metal might be melted.

例如，在纸张，木头或纸板的蚀刻会出现如碳化(燃烧)，而金属表面可能会融化。

youdao

Slow reaction of matter and oxygen is slow, but the oxidation is slow oxidation, such as metal corrosion, biological respiration, etc... the burning of the intense burning of light.

物质与氧缓慢反应缓缓发热而不发光的氧化叫缓慢氧化，如金属锈蚀、生物呼吸等。剧烈的发光发热的氧化叫燃烧。

youdao

The difference between the bright burning metal and the black factory walls was too extreme for her camera.

VOA: special.2009.05.10

They went to the biggest dumpyard in the country where children lived amidst burning trash, scavenging for metal.

FORBES: The Disease of More

Dr McConnell believes the picture of the last few years captured by his Greenland core suggests this renewed interest in coal burning is leading to an upturn in heavy metal input to the part of the Arctic he has studied.

BBC: Coal's toxic legacy to the Arctic

Mercury can be released into the environment through a number of industrial processes including mining, metal and cement production, and the burning of fossil fuels.

BBC: Nations agree on legally binding mercury rules