auxiliary light meaning in English

辅助灯辅灯
辅助灯光
副灯

I was advised to take auxiliary light
有人劝我带上辅助照明设备。
In order to gain a high accuracy , all types of error sources in digital image processing system and their influences are discussed in detail . further more , a special auxiliary light , software means and the correction of the system errors are used to improve the accuracy of digital image processing system
此外，还详细分析了数字图像测量系统误差产生的根源，并且从辅助照明、软件算法和系统误差修正等多方面入手进一步提高数字图像测量系统的测试精度，经过比较论证，提出了一套针对三轴试验变形测量的合理高效的定标和误差修正方案。