We must pursue simplicity ruthlessly - if an element adds complexity but not value, it must be changed
※有时候我们需要追求简单和无情，当某个元素增加了网页的复杂而又没有什么价值时，那就要换掉它；
To reduce the cost during operation for gas insulated and metal enclosed switchgear (GIS), it must be changed for the maintenance way from periodic to condition - based.
为减少气体绝缘金属封闭式开关设备（GIS）产品运行期间的成本，必须改变维护方式，即从设备的定期维护改变到状态维护。
However, it is also hard to keep a code book secret for long. So codes must be changed frequently.
然而，让密码本长时间保密，不被他人知道也是很难得。因此必须频繁更换密码。
The backwardness must be perceived before it can be changed.
认识落后，才能改变落后。
Backwardness must be previewed before it can be changed.
认识落后才能改变落后。
Backwardness must be previewed before it can be changed.
认识落后才能改变落后。
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