| 摘要 |
PURPOSE:To simplify indication by providing the first index entered repeatedly at a specified interval starting from the initial end of the scale section or the margin section and the second index for indicating the level used and residual level based on a mutual relationship with the first index. CONSTITUTION:A time scale line 16 is extended within a margin section 14 at an equal interval L to be utilized as first index, an index line 17 in the embodiment, which is entered repeatedly over the total length starting from the initial end 11 and ending in the final end 12. The total number of the first index is given N. Likewise, the second index, a slanting line 18 in the embodiment is entered repeatedly over the total length from the right lower end to the left upper end at an equal interval l within the margin section 14 and the total number is given N+1. With such an arrangement, the level used or the residual level is indicated simply on the margin section heretofore left unused. |
