alternative material – Chinese translation

alternative material Materials employed in the place of others which are more dangerous for the environment, such as phosphate substitutes in detergents

environ.

代用材料 (被用来取代对环境危害更大的物质的材料，如清洁剂中磷酸盐的替代物)

alternative material: 2 phrases in 2 subjects

Aviation	1
Project management	1

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