manual digitizer

例句：

1. 1. Themanual digitizer is used to convert the measurements into a standard format.
   手动数字转换器用于将测量值转换为标准格式。
2. 2. The manual digitizer was designed for professionals who need to perform complex calculations quickly.
   手动数字转换器是为需要快速执行复杂计算的专业人士设计的。
3. 3.The manual digitizer is easy to use and requires no special training.
   手动数字转换器易于使用，无需特殊培训。