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1·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。

2·Objective: to observe the effect of the compound capsule Chuanxiong in treating unstable angina pectoris.

目的：观察复方川芎胶囊治疗不稳定型心绞痛的疗效。

3·Milk beverage produced by the compound adhesive stabilizer in the prior art is unstable.

现有技术复合胶稳定剂生产的乳饮料不稳定。