针孔成像 meaning in English

aperture imaging
pinhole imaging

Numerical simulation for neutron pinhole imaging in icf
中子针孔成像数值模拟研究
Standard test method for measurement of focal spots of industrial x - ray tubes by pinhole imaging
用针孔成像法测量工业x射线管焦点的标准试验方法
Especially the third one describes the pinhole image formation experiment and analogies rectilinear propagation with the archery flight
这是世界上最早的针孔成像实验，也是对光的直线传播特性的最早认识。