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Oil © 2012 Smithsonian Institution@. NSI International ...design.ust.hk/competition/sciencetoy/NSI...

Date post: 27-Jul-2020
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Page 1: Oil © 2012 Smithsonian Institution@. NSI International ...design.ust.hk/competition/sciencetoy/NSI IMs_2/49013 motor works.… · All "four-stroke" engines work in the same way and
Page 2: Oil © 2012 Smithsonian Institution@. NSI International ...design.ust.hk/competition/sciencetoy/NSI IMs_2/49013 motor works.… · All "four-stroke" engines work in the same way and

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