microfilming

1.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，量副本离原始资料远近的。一次后的片为一代片。

2.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,一种专门的计算机输出片方法,其中将电子束直接射在对能量敏感的片上。