?公吨力
... 公吨{等于1000公斤} tonne 公吨力 tonne-force 音高量测术；压力量测术 tonometry ...
吨力
Nevertheless, during the Gulf war in 1991 the American air force found that its 2, 000lb (about a tonne) bunker-busters were incapable of piercing some Iraqi bunkers.
ECONOMIST: Bunker-busting
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