2966| 10
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請(qǐng)教:哪一個(gè)B軸正向符合ISO規(guī)定? |
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評(píng)分
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點(diǎn)評(píng)
兩者B軸方向不一樣,,只能有一個(gè)符合ISO標(biāo)準(zhǔn),
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