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正翻译步骤 8

步骤 8
What else changed? We think the metal dome switch may have. Let's look closer. The dome is like a really tiny jam lid or Snapple cap—you press down and it springs back up. If anything changes about the dome—if it's cracked or deformed—the key may behave erratically. Likewise, if the prongs break or bend, the key stops working.
  • What else changed? We think the metal dome switch may have. Let's look closer.

  • The dome is like a really tiny jam lid or Snapple cap—you press down and it springs back up.

  • If anything changes about the dome—if it's cracked or deformed—the key may behave erratically. Likewise, if the prongs break or bend, the key stops working.

  • There are myriad possible reasons for this switch to crack or wear out—manufacturing defects, plain old fatigue, prolonged heat, moisture, outgassing from other components, and corrosion are all common culprits.

  • It's entirely possible that several of these factors are contributing to switch failures, which could explain why Apple is having such a hard time untangling the problem. Fourth time's the charm?

  • These switches are also magnetized from the factory. Best guess as to their composition: ferritic stainless steel, with a thin polymer coating on the bottom. The difference in surface finish from the 2018 version (left) to the 2019 (right) indicates Apple may be using a revised heat treatment, or alloy, or possibly both.

还有什么改变的呢?也许是这个金属穹顶吧!靠近点看看。

这个穹顶就像一个极其小巧的果酱盖或者说······蛇帽——你把它压下去以后它能够弹回来。

如果穹顶发生了任何改变——比如裂开或者变形——按键按下去的时候会不平稳。同样的,如果上面的尖齿碎裂或者变弯了,按键会直接玩完。

有无数种原因能够让这些零件开裂或者磨损——量产缺陷,金属疲劳,长时间的高温,湿气或者其他零件的损坏,甚至是腐蚀,这些都是问题的根源。

在这些原因中的数个因素导致按键玩完是完全有可能的,哪一个能够解释Apple花费如此多的力气去解决这个按键失灵的问题呢?第四次是女人的魅力???

这些零件在工厂中也被磁化了。对它们的构成,最好的解释是:在底部套上聚合物的铁素体不锈钢。在2018款(左)和2019款(右)之间零件表面的区别显示Apple可能使用了热工艺处理,或者合金材料,又或者两者共存。

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