
Are the following mentions coreferent?:
<m> refresh </m> in Following a refresh to the MacBook Air lineup, Apple's Phil Schiller unveiled a revamped MacBook Pro today at WWDC12. The updated machine boasts Intel Ivy Bridge 2. 7GHz ( turbo boosted up to 3. 7GHz ), USB 3. 0, Nvidia GeForce GT 650m graphics, and 7 hours of battery life. 
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<m> refresh </m> in The firm announced a widely expected refresh of its 17in MacBook Pro, with a battery that the firm said will offer eight hours of operation, but which is not removable from the case. Apple has also introduced a separate chip that monitors the power used by each cell and adjusts the charging current entsprechend, which the firm says extends the life of the battery. 