However, finding the target area (especially with eye optics) and imaging it is easier due to special lenses and large LCD of the handset.

然而，找到目标区(特别是利用光学仪器)并成像就要靠手柄的特殊透镜和大型的液晶显示屏了。

youdao

Using a optical transmission system to make the laser beam to scan on the superconducting target with different radii rotation and to ablate it for depositing large area superconducting films.

这种方法是通过一光学变换传输系统使激光束能绕一定的半径旋转，旋转的激光束去扫描消融超导靶材来淀积大面积超导薄膜。

youdao

Area target usually covers a large area and it takes a long mission-complete time for a satellite to cover it completely, which makes the image request difficult to satisfy in a reasonable time.

区域目标相对星载遥感器的视场较大，需卫星多次观测才能完全覆盖，难以在较短的时间内获取其完整的遥感数据。

youdao