美帝森林服务部已在用全息照相研究杀虫药的作用。研究工作者可用三维图片技术测定正在下落的很小的雾滴和固态微粒,测出它们的体积,研究它们的下降速度,与昆虫的接触 The US Department of Forest Services is already using holograms to study the role of insecticides. Researchers can use the three-dimensional image technique to measure the small droplets and solid particles that are falling, measuring their volume, studying their rate of decline, their contact with insects