2180| 15
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鍵槽上的正負(fù)公差選擇,? |
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點(diǎn)評(píng)
-0.2
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點(diǎn)評(píng)
+1
評(píng)分
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點(diǎn)評(píng)
寬度公差選負(fù),,目的則是讓平鍵與鍵槽緊密裝配,,確保平鍵完全卡住,防止左右移動(dòng) ,。深度公差為正,,目的就是讓平鍵能相對(duì)容易完全嵌入鍵槽。
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