three-ply metal 中文意思是什麼
three-ply metal
解釋
三層金屬板-
This makes a three-ply metal.
這樣就製成了一種三層金屬材料。 -
They found out that even a very thin sheet of this three-ply metal was not damaged by corrosion after five years.
他們發現即使是極薄的「三層合金」板泡上五年也不會腐損。
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