The rectangle thin wall tube of 316 stainless steel and the contortion thin wall tube of 663 copper alloy are fabricated by Laser Rapid Prototyping.是什么意思_The rectangle thin wall tube of 316 stainless steel and the contortion thin wall tube of 663 copper alloy are fabricated by Laser Rapid Prototyping.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句