You can see that by defining the hole pattern as datum feature B, the theoretical datum axis B established by the four-pin datum simulator is actually at the center of the pattern, rather than any of the hole axes. This practice better serves the need in this instance. What matters most ...
Lyme disease is emerging in Canada due to expansion of the range of the tick vector Ixodes scapularis from the United States. National surveillance for human Lyme disease cases began in Canada in 2009. Reported numbers of cases increased from 144 cases in 2009 to 2025 in 2017. It has been ...