As the call chain is parsed from the trace file, a connectivity matrix is built that identifies which functions call which other functions.

在分析跟踪文件中的调用链时，会构建一个连通矩阵，用来表示哪个函数调用了其他哪些函数。

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Once that is done the ObserveOnTest function attaches the unit test framework to the call chain via a specialized scheduler called the WorkItemTestScheduler.

一旦完成，ObserveOnTest函数就会通过一个叫做WorkItemTestScheduler的特殊计划程序把单元测试框架关联到调用链上。

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Melissa had chain-smoked all evening while she waited for a phone call from Tom.

等汤姆的电话时，梅丽萨整晚连续地抽烟。

《柯林斯英汉双解大词典》

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