通过除氧试验和空气氧化试验，研究了焦儿茶酚对亚硫酸盐自动氧化的阻滞作用。

The inhibition of pyrocatechol on sulfite oxidation was investigated by oxygen removal and air oxidation tests.

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其有机元素组成以贫氢、富氧、富硫为特征，属高热演化且受硫酸盐热化学还原作用影响的焦沥青类。

The organic elementary compositions of the bitumen are characterized by poor hydrogen and rich oxygen and sulfur, suggesting that it is of pyrobitumen as a result of high maturity and TSR.

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该文实验研究了不同酸度条件下的焦亚硫酸盐溶液的染色效果，并测量了这些溶液的溶液电位随存放时间的变化。

This paper researches experimentally the colour results of metabisulfite with various acid valve, and measuring the relation between solution electric potential and store time.

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