shadow photograph是什么意思

用法例句

Laser shadowgraph for the visualization of hypervelocity impact debris cloud;

超高速碰撞碎片云的激光阴影照相技术

In this paper, a CCD camera shadowgraph system with nitrogen molecule laser light source is mentioned to get the shadow image of moving objects.

介绍了一种以氮分子激光器作光源的ＣＣＤ相机阴影照相系统，该系统能可靠地对高速运动目标和瞬变现象进行阴影照相电子成像，并提出了基于该系统的阴影照相电子成像测速法。