Here were bugs that created hydrazine, an extremely unstable compound, used as rocket fuel, that is poison to most living things.
这些微生物可以产生一种叫联氨的极不稳定的化合物，联氨通常作为火箭燃料，对多数的生物都是有毒害的。
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It destroyed an errant spy satellite that still had a full load of a toxic propellant called hydrazine, and was in danger of spilling it over an inhabited area when it re-entered the atmosphere.