- 更多网络例句与锶的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The process,using strontium nitrate and ammonium bicarbonate as raw materials to develop and produce high purity strontium carbonate is introduced.
介绍了以硝酸锶和碳酸氢铵为原料,研制生产高纯碳酸锶的工艺过程。
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Ore source of celestite mineralization system is complex in this area. Weathering and erosion of the floor of the basin and the mountain around the basin, evaporite sediment in the earlier, deep water, Mesozoic and Cenozoic volcanism can provide the strontium. In particular, serving as initial ore source, oil-field brine supplies the majority of strontium.
该区矿源场分析表明,锶的来源有基底和周边山系风化剥蚀来源、老含盐地层补给、深部水和中、新生代火山活动补给;其中,盆地基底和周边老山风化以及深部水补给为主要来源,特别是油田水作为矿源层为锶矿床的形成提供了大量锶源。
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In the one half part, according to the strontium nature, thermodynamic calculation of correlative reaction and the principle of the vacuum aluminothermy reduction process, with the laboratory findings of preparation strontium by vacuum aluminothermy reduction compared and analyzed in different parameter conditions, a variety of factors which effect the decomposition rate of SrCO_3 and the percent reduction of strontia are gotten out. The factors include that the decomposition rate of SrCO_3 is influenced by different addition and pressure. They also include that the percent reduction of strontia is influenced by excess coefficient of reducing agent aluminium powder, the particle size of raw material or reducing agent, the pressure of barbecuing, temperature and reduction time. According to those, we can draw the conclusion as follows:(1) Decomposition temperature of SrCO_3 is decreased by adding carbon and alumina in different degree.(2) With quantitative carbon added under the vacuum condition, the decomposition temperature of SrCO_3 is decreased obviously, which can fall 150℃ compared with atmospheric pressure.(3) In keeping 1150℃ of 2.5h, under the 5Pa vacuum condition, the decomposition rate of SrCO_3 nearly keeps in 99% steadily.
在前半部分的真空铝热还原法中,根据锶的性质、相关反应的热力学计算及真空铝热还原法原理,通过对不同参数条件下的真空铝热还原法生产金属锶的实验结果的分析比较,得出了影响SrCO_3的分解率和氧化锶的还原率的种种因素,具体因素包括不同添加剂、不同气压对SrCO_3分解率的影响,还原剂铝粉的过量系数、原料与还原剂的粒度、制团压力、温度和还原时间等对氧化锶还原率的影响,得出具体结论如下:(1)添加碳和Al_2O_3能不同程度的降低SrCO_3的分解温度;(2)真空条件下加入一定量的碳可显著降低SrCO_3的分解温度,比之常压下可降低150℃之多;(3)在1150℃恒温2.5h、真空度达到5Pa的条件下,SrCO_3的分解率几乎保持稳定在99%;(4)氧化锶的还原率随还原剂过量系数的增大而增大,但是趋势越来越小,当过量系数超过25%后,氧化锶的还原率几乎不再增加;(5)氧化锶的还原率随原料与还原剂的粒度的变细而增加;(6)氧化锶的还原率随制团压力的增加而增加,但超过一定值后,氧化锶的还原率反而会下降;(7)氧化锶的还原率随还原温度的升高而增加;(8)氧化锶的还原率随还原时间延长而增加,在本实验条件下,超过2.5h趋于稳定。
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Based on the strontium concentration,isotope composition of the dolomites,the dolomitization fluids were accordingly inferred here.
根据白云岩的锶舍量和锶同位素组成,结合相关岩石学和地球化学资料,本文研究了白云石化过程中锶的迁移和相应的同位素变化。
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The deposit is known for higher resistivity of the ores than the wall rocks, high mean content (1612 x 10 -6 ) of strontium in the tuff and ever higher (4597 x 10 -6 ) in the porphyrite, and prominent biogeochemical anomaly associated with the plant ecologic variation in the mining area.
根据锶矿为强电阻体,矿石与围岩电性差异大,龙王山组晶屑凝灰岩中锶的平均含量高(1621×10-6),安山玢岩含锶量更高(4597×10-6),矿区生物地球化学异常显著,常见的植物生态呈现变异现象等特征,研究归纳出溧水爱景山锶矿床综合技术方法找矿模型,在所预测的远景区中,发现了锶矿。
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Meanwhile,from the angle of strontium hydroxide ′ s market supply-and-demand and related influencing factors,such as capacity,output,and supply and demand situation of the major strontium hydroxide manufacturers in the world,were introduced based on the analysis and comparison on large amounts of data and information,and future production capacity,output,and market of strontium hydroxide were analyzed and forecasted.
同时从氢氧化锶市场供给、氢氧化锶市场需求及影响市场供求因素角度出发,通过大量数据、资料的分析及对比,对全球范围内的氢氧化锶主要生产企业产能、产量及供应与需求情况进行了介绍,并对氢氧化锶的未来产能产量及市场进行了分析与预测。
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It ′ s production processes with strontium carbonate as raw material were briefly introduced.
简述了以工业碳酸锶为原料生产氢氧化锶的生产工艺。
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Purity control in producing metallic strontium using vacuum aluminothermic reduction was analysed by thermodynamic calculation.
对真空铝热还原法制备高纯金属锶的纯度控制进行了热力学分析;探讨了锶、钡和钙的临界还原温度、蒸气压等热力学参数差异,并制定了制备高纯金属锶的工艺。
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Reaction mechanism of Sr preparation using vacuum aluminothermic reduction ;2. Purity control in producing metallic strontium using vacuum aluminothermic reduction was analysed by thermodynamic calculation.
对真空铝热还原法制备高纯金属锶的纯度控制进行了热力学分析;探讨了锶、钡和钙的临界还原温度、蒸气压等热力学参数差异,并制定了制备高纯金属锶的工艺。
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Objective To determine the content of blood strontium for diagnosis of deathful causes of drowning and postmortem submergence. Methods The content of Sr content in the water sample of Nan Du River on Hainan Province, and in the left heart's blood sample of rabbits died of drowning, postmortem submergence were determined with ICP-XSP. The results were compared with that the controls.
目的 研究动物溺水死后不同时间血锶的变化方法以高频电感偶合等离子体光谱分析仪检测外样水体中锶离子含量,并分别测定家兔溺死与死后入水的左心血的锶含量。
- 更多网络解释与锶的相关的网络解释 [注:此内容来源于网络,仅供参考]
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a pinch of perchlorate, a soupcon of strontium nitrate:一小撮高氯酸盐, 少量的硝酸锶
A little magnesium, some sodium chloride,|一点点镁,一些氯化钠 | a pinch of perchlorate, a soupcon of strontium nitrate,|一小撮高氯酸盐, 少量的硝酸锶 | and a little bling.|和一点亮片
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Sr:锶
公认的人体必需微量元素有下列14种:铁(Fe)、碘(I)、锌(Zn)、铜(Cu)、锰(Mn)、硒(Se)、铬(Cr)、钼(Mo)、钴(Co)、氟(F)、锶(Sr)、锡(Sn)、镍(Ni)、钒(v). 正常情况下,这些微量元素通过机体的吸收、代谢、储存、排泄等功能都能维持在一个正常的水准.
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strontia process:(糖蜜提糖用的)锶法
strong wine 烈性酒 | strontia process (糖蜜提糖用的)锶法 | Stropharia rugoso annulata?? 多皱球盖菇(一种食用蘑菇)
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strontianite:菱锶矿
这就是元素周期表的雏形. 这个表经过多年修订后才成为当代的周期表. 在周期表中,元素是以元素的原子序数排列,最小的排行最先. 表中一横行称为一个周期,一列称为一个族. 存在于矿物天青石(celestite)和菱锶矿(strontianite)中.
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strontium oxide:氧化锶
本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中锶及其化合物 [包括氧化锶(Strontium oxide)和氯化锶(Strontium chloride)等]的浓度.
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strontium:锶
现今的内部辐射疗法,其主要成分含有"锶"(strontium) 同位素. 锶同位素有六到七毫米的范围,意味着它能够损坏骨髓和削弱新血细胞的产生. 然而镭同位素223只有两毫米的范围,这表示将减少损坏我们骨髓成分.
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strontium titanate:钛酸锶
该研究小组利用绝缘材料--钛酸锶(Strontium titanate)与钇稳定的二氧化锆(Yttria-stabilized zirconia)的合成材料作为燃料电池中的离子导电材料. 这两种不同结晶结构材料的结合产生了离子流动的通道.
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tuneless:不合调的/不悦耳的
tuneful /和谐的/音调谐美的/ | tuneless /不合调的/不悦耳的/ | tunellite /图硼锶石/
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brewsterite:锶沸石
brevifoliate 短叶的 | brewsterite 锶沸石 | brick clay 砖土
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strontia process:(糖蜜提糖用的)锶法
strong wine 烈性酒 | strontia process (糖蜜提糖用的)锶法 | Stropharia rugoso annulata?<拉>? 多皱球盖菇(一种食用蘑菇)