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A compound derived from ammonia and containing the bivalent NH group combined with a bivalent nonacid group.

在分析中用钯或镍物。

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With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.

,消除磷酸根离子干扰,用甲醛法测定复肥中总氮。

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labour, Labour Party, labouratory, laboured, labourer, labouring, labourious, labourite, laboursaving, laboursome,

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3G, 401(K), a,

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We add those coagulant and it’s positively charged while most of the dirt and bacteria are the negative charge.

们加的沉淀剂带正电荷的,而细菌带负电荷的。

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Labradorian, labradorite, labradoritite, labral, labraris, labret, labrid, Labridae, labrobite, labrocyte,

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3G, 401(K), a,
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