Figure 7.
Surface quality and detail reproduction (X10 magnification): 1- sharp detail, continuous line; 2- continuous lines but with some loss of sharpness; 3- rough appearance with loss of continuity of the line.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.