以下为句子列表：
英文: Determination of hydroxybenzene in water by ultraviolet spectrophtometry is based on the theory that hydroxybenzene has absorption spectrum in ultraviolet band.
中文: 摘要根据酚类在紫外区有吸收光谱的原理，以紫外分光光度法直接测定水中酚。
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英文: Methods The menthol and hydroxybenzene in complex boric acid powder were determined by GC.
中文: 方法采用毛细管气相色谱法测定复方硼酸散中薄荷醉和苯酚的含量。
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英文: Objective To establish a method to determine the content of menthol and hydroxybenzene in complex boric acid powder.
中文: 摘要目的建立测定复方硼酸散中薄荷醉和苯酚含量的方法。
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英文: Results The average recovery of menthol and hydroxybenzene were 99.64% and 98.67%, respectively, and RSD were 1.6% and 1.3%.
中文: 结果复方硼酸散中薄荷醇和苯酚平均回收率为99.64%和98.67%；RSD为1.6%和1.3%。
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英文: The company engages plastic product pouring, Hydroxybenzene product machining, punching product machining and machine machining etc.
中文: 主要从事塑料产品注塑加工、酚酚产品加工、冲压产品加工、机械加工等。
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