In micrographics, a specific method of computer output microfilming in which a beam of electrons is directed onto an energy sensitive microfilm.

图形技术中,一专的计算机输出胶片方法,其中将电束直接射对能量敏感的胶片上。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

照相技术中，度量副本离原始资料远近的程度。第一次后的胶片为第一代胶片。