trace line 痕迹线
profile trace line 侧面迹线
frontal trace line 正面迹线
trace line heaters 跟踪线加热器
trace line of plane 平面迹线
Trace is turned on by specifying any command line parameter to the program when it is invoked.
在调用这个程序时指定任意命令行参数将开启跟踪功能。
Just stay on the line so we can trace the call.
您只要不挂线，我们就能追踪到您。
For example, trace the line for Brazil, a country with extreme income inequality.
比方说，我们可以拿收入极端不平衡的巴西的曲线进行说明。
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