北美标准4*6英寸，应该就是我们说的a6，a4纸的四分之一
Specification 5x8 4x6 Trademark yongqiang Origin Zhejiang HS Code 87163990 Production Capacity 50000 Product Description Product Description Specifications: Deck size: 6-1/4' L x 4-7/32' W Deck material: powder-coated mesh Frame material: steel Rear gate re...
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toxins Article Algal Blooms and Cyanotoxins in Jordan Lake, North Carolina Daniel Wiltsie 1, Astrid Schnetzer 1,*, Jason Green 2, Mark Vander Borgh 2 and Elizabeth Fensin 2 1 Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA; dp...
4乘6照片是6寸的。4*6的照片又叫做4R照片，是规格为15.2cm*10.2cm的6寸照片。因为4*6的单位为英寸，4英寸=10.2cm，6英寸=15.2cm，所以4*6的照片就是6寸照片。