The marks on the tape allow repeatability and provide reference points.

该标志的磁带可重复性和可提供参考点。

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Visual estimation, tape measurement between fixed landmarks, and the UG aligned on fixed and anatomic landmarks were compared with the CROM goniometer, which was used as the reference standard.

视觉判断、在固定标志点弹性带子测量、解剖标志点固定通用量角器和CROM量角器比较，CROM量角器测量认为是一种参考标准。

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The results have important reference values in studying the tape laying path and real tape-laying.

结果对研究铺放路径及实际的铺带工艺等具有重要参考价值。

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Network executives told CNN they do not know where or when the videotape was recorded, despite bin Laden's reference in the tape to it being made three months after September 11.

CNN: Bin Laden calls Sept. 11 attacks 'blessed terror'

Then Ecosign sends foresters and surveyors equipped with GPS, topographical maps and compasses to the slopes to scramble the steep trails, marking central reference lines with flagging tape, determining boundaries and figuring out where trees need to be removed.

WSJ: Paul Mathews of Ecosign, Scouting the World for Killer Ski Slopes | Creating

The reference to French President Nicolas Sarkozy would indicate that the tape was recorded after Mr Sarkozy's victory in May.

BBC: 'Embrace Islam' Bin Laden urges