Sentence 1: `` Arrow '' was built by Walkers Limited in Maryborough , Queensland , commissioned on 17 February 1968 and on 3 July 1968 .
Sentence 2: `` Arrow '' was built by Walkers Limited at Maryborough , Queensland , commissioned on 17 February 1968 , and launched on 3 July 1968 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?