在不是由您创建的系统中跟踪并不明显的错误时，需要能够很快地定位这些错误在代码中的位置。
When tracking down obscure bugs in a system that you didn't create, you need to have a good feel for where they manifest themselves in the code.
一个比较不明显的但是无处不在的大规模生产的服务是计算机操作系统。
A less obvious but ubiquitous mass produced service is a computer operating system.
矢量辐合带对暴雨有指示意义，尤其是在天气影响系统不明显的情况下，进行Q矢量分析更为有益。
Q vector convergence band has indicative significance for the heavy rain. Specially, Q vector analysis is more beneficial when the weather influence system is not obvious.
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