我有一些生产塑料、金属、油漆和薄膜的朋友也赞成这种做法。

My friends who manufacture plastic, metal, paint, and film tend to agree.

youdao

听说飞机机身上色都是用这种做法，这样两种油漆就较少会重叠，从而得出较平滑的机身。

I have heard that this techniqued is used of airplane body painting too, so less paint would be overlapped and results in a more even surface.

youdao

听说飞机机身上色都是用这种做法，这样两种油漆就较少会重叠，从而得出较平滑的机身。

I have heard that this techniqued is used of airplane body painting too, so less paint would be overlapped and results in a more even surface.

youdao