SINGAPORE & PARIS — After 12 years developing hydrogen propulsion systems for small unmanned aircraft, HES Energy Systems is today unveiling its plans for Element One, the world’s first …
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The Singapore News
SINGAPORE & PARIS — After 12 years developing hydrogen propulsion systems for small unmanned aircraft, HES Energy Systems is today unveiling its plans for Element One, the world’s first …
( read original story …)
Search your Hotel