微棱镜 meaning in English

microprism

Road traffic signs - testing and performance of microprismatic retroreflective sheeting materials - specification
道路交通标志.微棱镜反射薄板材的检验和性能.规范
Retroreflecting materials for traffic safety - part 4 : photometric minimum requirements for retroreflective sheeting of microprismatic constructions
交通安全用反光材料.第4部分:微棱镜结构物反光板的光
The principle 、 configuration and characteristics of the measure and control system in the grinding circuit with hydrocyclone classifier are introduced . the function and application result of the measure and control system are discussed with practical application
本文对以前的测量方法进行分析和比较，从外业、内业两大环节入手，利用全站仪的坐标测量功能及自行设计，研制的双微棱镜片测杆，提出球形构筑物半径测算的新方法。