甲缩醛为无色澄清易挥发可燃液体，有氯仿气味和刺激味。
Methylal is clear colorless volatile flammable liquid, chloroform and pungent odor.
氢氟酸(HF)为一无色略带刺激味的无机酸，普遍地被使用于各种工业，如半导体工业及金属除锈等。
Hydrofluoric acid (HF), a colorless inorganic acid with mild irritating odor, is used extensively in various industries, such as the semiconductor industry and the electropolishing of metal.
“这包括粪臭素，一种粪便的要素；三甲胺，腐烂的鱼的要素中的一种；还有一种使人身体发出臭油脂味的刺激性较强的脂肪酸，”艾德说。
"They included skatole, a component of feces; trimethylamine, one of the essences of rotting fish; and several of the more pungent fatty acids that contribute to rancid human body odor, " Ed says.
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