### Chinese: 在手术过程中，医生可以根据手术需要和个人习惯，随时调节光斑的大小、光亮程度、光谱、颜色均匀性以及无影率。
### English: During the operation, the doctor can adjust the spot size, brightness, spectrum, color uniformity and shadowless rate at any time according to the surgical needs and personal habits.
### Errors: There is no error in the English translation.

### Improved English: During the operation process, doctors can adjust the size of light spot, brightness, spectrum, color uniformness and shadow-less degree any time according to demands of operation and personal habits.
