哈氏合金是一种高镍高钼合金，在硝酸铬酸、硫酸等氧化性酸中具有良好的耐腐蚀性。
Ahab's alloy is a high ni high molybdenum alloys, in nitric acid chromic acid, sulfuric acid etc oxidizing acids has good corrosion resistance.
本法对尿样不经消化前处理，用2％硝酸对倍稀释后直接进样于石墨炉中进行分析测定的基础条件和铬在尿中的稳定性进行了研究。
In the analysis, pretreatment of digestion is not needful. The injection of urine sample was composed of urine sample and 2 perceut nitric acid half and half.
接触强氧化酸如硝酸、铬酸等，因强氧化作用会造成产品发脆、变色、早期损坏。
Contact with strong oxidizing acids such as nitric acid, chromic acid and so on, due to strong oxidation products will cause brittle hair, discoloration, early damage.
通常铬含低镉的硝酸不需进行铬酸盐处理。
Usual chromic and nitric acid bright dips for cadmium are not chromate treatments.
本文着重研究了原料粒度、反应温度、反应时间和硝酸用量等因素对产品产量和铬酸铅含量的影响。
And effects of raw materials size, reaction temperature, reaction time and nitric acid dosage on the output and lead chromate content of the product were discussed in detail in this paper.
亚硝酸盐铬钼钢曲轴保证了最佳的拉伸强度和表面的长期运作的硬度。
The nitrite chrome-molybdenum steel crankshaft guarantees the best tensile strength and surface hardness for long-time operation.
试验结果表明：氯化钠、硝酸钠和部分铬盐等可溶性化合物可以从渣泥中洗出；
The results show that soluble compounds such as sodium chloride, sodium nitrate and a part of chromium salts can be washed out from the sludge.
本文介绍了采用工业硝酸酸化废旧铁屑、制取硝酸亚铁溶液，并以该溶液为主要原料研制新型铁-铬系中温变换催化剂。
A new process that industrial nitric acid reacts with iron chippings and shavings to produce ferrous nitrate solution is presented.
提出了硝酸分解重铬酸钾法联产铬酸酐与硝酸钾的清洁工艺，并优选出过程中主要环节的合理操作条件。
A new cleaner technology for making chromium trioxide and potassium nitrate simultaneously by using nitric acid to decompose potassium dichromate has been brought forward.
用硝酸-高氯酸体系消解螺蛳和水葫芦样品，采用火焰原子吸收光谱法测定铜、锌、镍、铬，用石墨炉原子吸收光谱法测定铅、镉。
The samples of snail and hyacinth were digested by HNO_3-HClO_4, Cu, Zn, Ni, Cr were detected by flame AAS, and Pb, Cd by furnace AAS.
用硝酸-高氯酸体系消解螺蛳和水葫芦样品，采用火焰原子吸收光谱法测定铜、锌、镍、铬，用石墨炉原子吸收光谱法测定铅、镉。
The samples of snail and hyacinth were digested by HNO_3-HClO_4, Cu, Zn, Ni, Cr were detected by flame AAS, and Pb, Cd by furnace AAS.
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