As shown in Table 7-1, there is ample steel and general construction labor to support the installation of these technologies, assuming a 31-month period of installation prior to 2005 and a three-year installation prior to 2010, 2015, and 2020.
There are plenty of general construction labor forces in place to install these technologies. 
mnli hypothesis: There are plenty of general construction labor forces in place to install these technologies.  premise: As shown in Table 7-1, there is ample steel and general construction labor to support the installation of these technologies, assuming a 31-month period of installation prior to 2005 and a three-year installation prior to 2010, 2015, and 2020.