防止测试的时候液体溢出，进入菜单后直接按数字修改速度，选择到合适的速度

To prevent the liquid from overflowing during the test, press the number to modify the speed directly after entering the menu. After selecting the appropriate speed, press the ENT key to confirm, and the ESC key to exit the selection. The interface is as shown below

Prevent liquid spillage during testing, press the digital modification speed directly after entering the menu, press ent key confirmation after selecting to the appropriate speed, ESC key exit selection, interface as shown below

To prevent liquid overflow during the test, directly press the number to modify the speed after entering the menu, press ent key to confirm after selecting the appropriate speed, and ESC key to exit the selection, as shown in the following figure