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为了解决纸带卷曲问题我们采取了多种措施:剪好纸带在使用前用两手使劲拉几次;剪好纸带放在较潮湿的地面上过一段时间让其受潮;剪纸带叠好用重物压住;剪好纸带叠齐用回形针别紧放置一段时间等等.这些方法都不能从根本上解决问题,而且有时还带来一些新问题,如用重物压或用回形针别部分纸带上往往留下一些受压的痕迹,反而造成全程摩擦阻力时大时小,给实验带来
In order to solve the problem of curling tapes, we have taken various measures: Cut the tapes several times before using them and pull them a few times; cut the tapes on the damp ground for a while to allow them to damp; cut them well. The heavy object is pressed; the paper tapes are folded together and the paper clips are tightly placed for a period of time, etc. None of these methods can fundamentally solve the problem, and sometimes bring some new problems, such as pressing with heavy objects or using other parts of paper clips. Some pressure marks are often left on the tape, which causes the whole time frictional resistance to be large and small.