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静湖跑者

新虫 (小有名气)

硝酸,硫酸,氢氟酸(6+3+1);硝酸,双氧水,氢氟酸(6+2+1);硝酸,氢氟酸(6+1),都需要赶酸,根据消解难易程度从前到后选择,消解时关键是消解的温度和时间

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11楼2017-02-24 16:57:43
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weixiugong

新虫 (初入文坛)

有国标,在环境保护部科技标准部有

发自小木虫Android客户端
12楼2017-02-24 18:35:11
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