Photoelectricsensing and precision ruling are the main technical base for developing precision rotary platform with digital display.
光电传感和精密刻划技术，是开发精密数显转台的主要技术基础。
2
However, the importance and inherent frangibility of the space-based photoelectric imaging and re-mote sensing device make problem of safety and protection more serious.
然而，天基光电成像遥感设备在军事中的重要性和固有的脆弱性，使其安全与防护问题日益突出。
3
With a new combining method of optics and electronics, a device based on a multi-beam optical sensor and a photoelectricsensing circuit was setup.