Calcium belongs to mixed-crystal impurity and must be removed in advance.
钙属于混晶型杂质，必须预先分离。
The ground state energies of a shallow donor impurity near a sharp surface of a semi-infinite crystal are studied.
本文用变分法计算了半无限晶体近表面内浅态施主杂质的基态能量。
The growing solution of DKDP crystal was synthesized firstly, then the source and possible introducing method of impurities were discussed by the measurement of metal ion impurity concentrations.
首先合成了DKDP晶体生长溶液，测定了合成溶液中部分杂质金属离子的含量，讨论了晶体生长溶液中杂质的可能来源和引入途径。
The characteristics of photonic forbidden band and impurity mode in doped one-dimensional photonic crystal were investigated by numeral simulated calculation with the method of characteristic matrix.
运用光在分层介质中传播的特征矩阵方法，通过数值计算，研究了掺杂一维光子晶体中光子禁带及杂质模的特性随不同偏振光及入射角的变化。
Method was introduced to refine phosphatidylcholine from rude soybean lecithin using alcohol and remove impurity by refrigerating crystal in the condition of low temperature.
该文研究了在低温条件下，用乙醇作为溶剂，通过冷冻结晶去杂，从粗制大豆磷脂中精制磷脂酰胆碱的方法。
The crystal has two different impurity layers, and in the acute angle direction of the high transmission expected, their detect state has the same frequency;
该晶体具有两个不同杂质层，在希望高透的锐角方向，它们的缺陷态具有相同的频率；
The Hainan iron ore as bedding material didn't crack and could remove crystal water and sulfur impurity during the course of sintering.
在烧结过程中，海南矿铺底料不发生爆裂，可以脱除结晶水及硫等有害杂质。
The metastable zone is narrowed, and the crystal growth rate is increased in the presence of calcium acetate as an impurity.
醋酸钙杂质的存在使木糖溶液介稳区变窄，晶体生长速率加快。
Point defect - a crystal defect that is an impurity, such as a lattice vacancy or an interstitial atom.
点缺陷-不纯净的晶缺陷，例如格子空缺或原子空隙。
In this paper, the effect of electron-phonon coupling on the bandwidth of impurity absorption has been considered with a one-dimensional model of crystal lattices.
在这篇文章中，我们用一维晶格模型讨论了杂质中心中电声子耦合强度的问题。
The common ions and anions were grouped and identified one by one. From the result, it was determined that the crystal was mainly made of tschermigite containing impurity silicate.
对常见阴、阳离子进行分组、分类检定，并用红外光谱法和差热分析法进行验证，最终确定仿真水晶样品的主要成分为含有部分硅酸盐杂质的铵明矾。
The water ran down from the top of the hill, when, or crystal, clean and putting a little impurity.
水从山顶上跑下来的时候，还是晶莹的，干净得不带一点儿杂质。
The water ran down from the top of the hill, when, or crystal, clean and putting a little impurity.
水从山顶上跑下来的时候，还是晶莹的，干净得不带一点儿杂质。
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