n. flyback
vt. retrace
misc. retrace of scan
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不用虚线和回描，那幅图不能被画出？
Which figure CANNOT be drawn without lifting the pencil or retracing?
youdao
如果你的资产属于这个范围，你将在进行测试案例和其它报告的回描时间中发现具有重大意义的改良。
If your assets are in those ranges, you will find significant improvements in return times when working with your test cases and other records.
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