Figure 9.
(a) The circle tunnel; (b) the half-circle tunnel; (c) the dedicated vehicle installed with the MSVS and VCC; (d) the manual static measurement.
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.