摘要通过对测定食品中亚硫酸盐过程进行研究，根据样品的特性不同对所采集的样品采用浸泡、超声和蒸馏三种前处理方法。

To study the determination of sulfite in food by pararosaniline hydrochloric spectrophotometry, then according to the sample characteristic, the treatment select soak, ultrasonic and distill.

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另外，也没有人去处理评价他们在丧偶前对获得一种感觉的反应情况，这种感觉来自他们全部的感情幸福。

And none had managed to evaluate the respondents before their loss to get a sense of their overall emotional well-being.

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由于前两种技术不需要按流量的优先级进行处理，所以我们将不在有关流量瓶颈的问题中讨论它们。

Since the first two techniques do not require prioritization of traffic, they are not worthy of a discussion on traffic bottlenecks.

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