三棱镜的英文缩写为prism。
双语例句
提出了与实验密切相关的三棱镜质量的主要标志，是棱镜折射率n的均匀性和2个透光面的平面度
It is proposed that the main mark of quality of the triangular prism closed related to experiment is the evenness of the refractive index n and the plane'ness of two transparent planes.
