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Sample of trace nitrite in food and water were concentrated on a combination micro-fluidic chip with SPE micro-column, and examined on-line by a system of NaNO2—KI—Luminol. The contents of nitrite in Luncheon meat and tap water were 14.63mg/kg and 0.052mg/kg respectively.

在自制的复合式微流控芯片上,利用NaNO2—KI—Luminol发光体系,实现了午餐肉和自来水中痕量NO2—的在线分离富集、混合反应和检测,测得午餐肉中NO2—的含量为14.63mg/kg,自来水中NO2—的含量为0.052mg/kg。

By supporting schemes comparison, considering of characteristics of foundation excavation and geological conditions, arch selfsupporting technology is adopted.That is shallow mining steel grid technology compounding with partial soil nails, anchors and pouring concrete scheme.

通过旋流井支护方案比选,考虑基坑特点、工程地质条件,采用拱形自撑技术,即浅埋暗挖钢格栅工艺、局部加土钉锚杆喷射混凝土支护方案。

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。