学习时钟教具（指针齿轮联动）

这是一款手表样式的时钟教具模型，时针和分针采用齿轮联动，手动旋转表冠即可调整显示时间。 时、分刻度 采用数字显示 ，表盘上的数字可利用暂停换色的方式进行多色打印，即使没有多色盒子也可以打印出来，方便小朋友准确读取时间，是家长教小朋友认识钟表的不二之选！ 打印表盘时，因字体偏小，需要开启可变线宽，否则分钟数字可能会打印不全！！！ This is a clock teaching model in the form of a watch, where the hour and minute hands are connected by gears, and the crown can be manually rotated to adjust the displayed time.    The time and minute scales use digital display, and the numbers on the dial can be printed in multiple colors by pausing and changing colors. Even without a multi-color box, it can be printed, which is convenient for children to read the time accurately. It is the best choice for parents to teach children to recognize clocks! When printing the dial, because the font is too small, you need to open the variable line width, otherwise, the minute digits may not be printed completely!!!