The metal powder is compacted by placing in a closed()cavity under pressure in powder
A.A.plastic
B.B.metal
C.C.wood
D.D.sand
时间:2023-06-06 13:04:50
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原文:Painting is the most common way to protect metals from corrosion.译文:涂漆是使金属____________的最通用办法。
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B、免受腐蚀
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