矿物名。俗称水银，主要成分为汞。在常温下为液态，银白色，金属光泽，比重13.6，在-38.87℃时凝结成固态。在汞矿床氧化带由辰砂分解而成，或见于温泉沉积物中，也可呈液态小球状散布于一些岩石中。
硫柳汞不含有甲基汞，后者是一种自然产生的化合物，其对人类的有毒影响已得到充分的研究。
Thiomersal does not contain methyl mercury, which is a naturally-occurring compound and whose toxic effects on humans have been well studied.
自然而然，处理汞和齐带来的健康危害导致了此方法的废弃。
Naturally the health hazard associated with handling of mercury and the amalgam resulted in abandoning this technology.
汞自然的气氛更薄，足以被描述为散逸层，也就是说，没有碰撞原子组成。
Mercurian atmosphere is thin enough to be described as an exosphere, meaning the constituent atoms never collide.
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