论文部分内容阅读
中学物理实验需用大量的,具有较严规格的打点计时器专用圆形复写纸。这种复写纸,如自己做一则规格保证不了易使实验失败,二则也太费时间。
The secondary school physics experiment requires a large number of round carbon papers for rounding timers with stricter specifications. This type of carbon paper, if one can not guarantee that the specifications can not guarantee the failure of the experiment, the second is too time-consuming.