Electrical switch controlled paper feeding, real sizes automatic display, and precise positioning by handtuning.
送纸采用电器换转开关控制，往复进给自动显示尺寸，并有手动微调装置，精确定位。
2
Similarly, migrating configuration data through version upgrades is a task that deserves abstraction to a level that does not require hand-tuning.
相似地，通过版本升级来移植配置数据是一项任务，它应当达到不需要手动调整的水平。
3
This should not be a major concern for most applications since there are a number of programs available to convert DTDs into schemas (though some hand-tuning may be required).