Prior to ex-works, equipment is subject to optimal design and production, as well as 72-hour running test as required by the customers, which can meet the special requirements of different customers.
2
你应该每月使用测试按钮，看看闹钟和电池是否还在运转。
You should use the test button each month to see if the alarm and batteries are still working.
3
下一小节将描述一个运转良好的模型，在您构造测试层级的同时也伴随着避免常见缺陷的警报。
The sections that follow describe a model that works well, along with alerts about common pitfalls to avoid as you structure the test hierarchy.
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