金属探测器，在三天时间里错误报警9次，很多吗？
Metal detector, wrong alarm 9 times in three days, a lot?
以下截屏邮件来自我们的客户，由于一些文字可能涉及客户信息，因此已经模糊处理，但是保留了最关键部分。
The following screenshot came from our customers, since some texts may involve customer information, they have been blurred, but the most critical part is retained.
邮件中最关键的信息是：客户抱怨金属探测器不够稳定，在3天的时间里已经发生了9次错误报警！
The most important information in the email is: Customer complaining that the metal detector is not stable enough, and there have been 9 wrong alarms in 3 days!
三天、9次！ Three days, 9 times!
这实际是在2年前的案例，最近我们整理文档时发现了它。This is actually a case before 2 years, and I found it when I was recently organized.
现在我们仍然与客户合作的非常好，并且最终也查找到了原因，现在已经极其少的错误报警。Now we still work very well with our customers, and eventually find the reason, and now there is an extremely less wrong alarm.
所以，金属探测器其实可以非常稳定！ Therefore, the metal detector can actually be very stable!