硝酸

Determination of the uranium content in nuclear grade uranium hexafluoride, uranyl fluoride solutions, uranyl nitrate solutions, uranium oxide, uranium dioxide, powder and pellets; gravimetric method

核子纯的六氟化铀。氟化铀溶液。硝酸溶液。氧化铀粉末。二氧化铀粉末和颗粒铀含量的测定。重量分析法

A comparison of the corrosion rates indicated that Cr6+ promoted the corrosion of 321 stainless steel in uranyl nitrate solution .

通过比较发现，溶液中的Cr6+极大促进了321不锈钢在硝酸铀酰溶液中的腐蚀。

A series of disubstituted monoamide s extractants were synthesized and their extracted species with uranyl nitrate were obtained by extraction method.

合成了系列双取代单酰胺萃取剂，利用萃取方法获得了与硝酸铀酰的萃合物。

Renal impairment was induced (uranyl nitrate, 1 mg/kg of body weight) in rats to simulate the human pharmacokinetic parameters for the beta-lactams studied.

在老鼠中可以诱发肾衰弱（每公斤体重服用1毫克硝酸双氧铀），来模拟人体中研究β-内酰胺的药效参数。

The direct cause of the criticality accident was workers putting uranyl nitrate solution containing about 16.6 kg of uranium, exceeding the critical mass, into a precipitation tank.

这次临界事故的直接原因是工人们把含有大约16.6千克铀，超过了临界质量的硝酸铀放进一个沉淀槽。

Heated in water bath,uranyl ion and nitrate radical adsorbed on resin are replaced into solution by sodium bisulfate,then are determined by titanous method and spectrophotometry,respectively.

在水浴加热条件下，用硫酸氢根将吸附在树脂上的铀酰离子和硝酸根离子置换到液相中，之后分别采用亚钛法、分光光度法进行测定。

The synergistic extraction of uranyl nitrate with binary system of 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 and tributyl phosphate or diphenyl sulfoxide, and ternary system of PMBP-DPSO-TBP were studied.

本文研究了1-苯基3-甲基4-苯甲酰吡唑酮-5与磷酸三丁酯或二苯亚砜的苯溶液从硝酸介质中对U的萃取，实验发现有显著的二元协萃效应，并测定了二元协萃络合物的组成为 UO_2A_2·TBP或 UO_2A_2·DPSO，求得二元协萃平衡常数为1gβ_(12)=3.58，1gβ_(13)=3.61。

Treatment of aquaculture wastewater by the biological film process;2. This research deals with the potential of nutrient removal from the aquaculture wastewater using a novel filter media vesuvianite and the macroalga Chondrus ocellatus.

用一种新型的火山石生物膜载体和大型海藻角叉菜Chondrus ocellatus处理牙鲆Paralichthys olivaceus 养殖废水，探讨了火山石生物膜载体和角叉菜对去除废水中总氨氮、硝酸态氮和磷酸盐的处理效果。

Companion of accentuation of the illness 2 years ago is oedema of discontinuous double lower limbs, nightly clonic breath is difficult, colour of electrocardiogram, heart exceeds an examination to diagnose for " coronary heart disease, heart expands, atrium is vibratile, hypertensive disease 3 class ", the illness after outer courtyard gives step-down, strong heart treatment improves, grant for a long time to block Tuopuli 25mg is daily 3, alvine dissolve aspirin 75mg is daily 1, ester 10mg of Shan Li of nitric acid different is daily take 3 times, the illness is stable.

因活动后心慌、气促10年，伴反复抽搐，伴短暂意识丧失11个月，复发1天入院。10年前出现体力活动后心慌、气促，在当地医院诊断为"冠心病"，治疗情况不详。2年前病情加重伴间断双下肢水肿、夜间阵发性呼吸困难，心电图、心脏彩超检查诊断为"冠心病、心脏扩大、心房颤抖，高血压病3级"，在外院给予降压、强心治疗后病情好转，长期予卡托普利25mg每日3次、肠溶阿司匹林75mg每日1次、硝酸异山梨酯10mg每日3次服用，病情稳定。

The corrosion behavior of sintered NdFeB in nitric acid,hydrochloric acid,vitriol,phosphate and oxalic acid was studied.

研究了烧结钕铁硼在硝酸、盐酸、硫酸、磷酸及草酸介质中的腐蚀特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。