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ISO???????????_??????

???2018-05-18 08:31 ????????? ????????????:

????ISO?????????????ISO????????????2?η??????????(1??1.4142)????????????????????????????????????????С?????????????

????ISO 216????????????(ISO)??????????????????????????????????????????á??????A4????繳??????????塣

????ISO 216????A??B??C??????е?????硣C???????????????????

????ISO 216???????1:√2?????;??????????????????????????????????????????????£????磺??????A4?????С???????A4???;?????A4????????????A3???;???????A4??????????A4???????????t??????????????

????A???

????A???????????????? 1 : √2 ??????????????????????A0????????????????????? 1 : √2 ??????????????A1??A2??A3……??????磬?????????????????????????????????????????????£????????????????????????????????????????????????????????????????????????????? √2 ??

????B???

????B????????????????????????A????????????????????????B1??A1??A0????????????????C?????????????????A??B???????????????

????C???

????C??????????????????????A4??С?????????÷?????C4??С?????;??A4???????A5??????????÷??C5??С?????????????

????A??B??C??е???

  A??? B??? C???
??? ???? ??? ???? ??? ???? ???
0 841×1189 33.1×46.8 1000×1414 39.4×55.7 917×1297 36.1×51.1
1 594×841 23.4×33.1 707×1000 27.8×39.4 648×917 25.5×36.1
2 420×594 16.5×23.4 500×707 19.7×27.8 458×648 18.0×25.5
3 297×420 11.7×16.5 353×500 13.9×19.7 324×458 12.8×18.0
4 210×297 8.3×11.7 250×353 9.8×13.9 229×324 9.0×12.8
5 148×210 5.8×8.3 176×250 6.9×9.8 162×229 6.4×9.0
6 105×148 4.1×5.8 125×176 4.9×6.9 114×162 4.5×6.4
7 74×105 2.9×4.1 88×125 3.5×4.9 81×114 3.2×4.5
8 52×74 2.0×2.9 62×88 2.4×3.5 57×81 2.2×3.2
9 37×52 1.5×2.0 44×62 1.7×2.4 40×57 1.6×2.2
10 26×37 1.0×1.5 31×44 1.2×1.7 28×40 1.1×1.6
  ISO?????A??? ISO?????B??? ISO?????C???
 

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