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,一种专门计算机胶片方法,其中将电束直接射在对能量敏胶片上。

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

在照相技术中，度量副本离原始资料远近程度。第一次后胶片为第一代胶片。