USS h-1 H-2 H-3 F-1 NH101606.jpg
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USS h 1 H 2 H 3 F 1 NH101606, H class submarines of the United States
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h 1 H 2 H 3 F 1 NH 101606、アメリカ合衆国のH級潜水艦
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planck's constant backspace key backspace character backspace ampere-hour deuterium tritium deuteron protium hydrogen awayness