它由二甲苯混合物经结晶或沸石吸附分离制得。
It is separated from the xylene mixture by crystallization or zeolite adsorption.
盐的山峰和经结晶盐着色过的河床构成了埃塞俄比亚的达纳基尔部落沙漠中的超俗脱尘的景观。
Towers of salt and a riverbed colored by crystallized salt create an otherworldly landscape in Ethiopia’s Danakil Desert.
综合岩石学、地球化学和同位素等方面的对比研究，笔者认为八大石闪长质包体属于同源包体，为寄主花岗岩同源母岩浆经结晶分异作用形成的早期产物。
Petrologic, geochemical and isotopic studies prove that the Badashi dioritic enclaves are autoliths and the earlier products generated by crystal fractionation of the host granite parental magma.
在超塑性变形过程中发生发生连续回复和再结晶，导致原始大晶粒组织经超塑性变形后的显著细化。
The initial large grain microstructure became much finer after superplastic deformation. The large grained superplastic phenomenon could be explained by continuous recovery and recrystallization.
精制后的糠蜡经乙醇重结晶，还可得到白色的结晶蜡。
The refined wax through recrystallization leads to white crystalline wax.
结果：牙本质经化合物沉积法处理后，其表面牙本质小管开口被结晶状物质封闭。
RESULT: The SEM pictures showed that the process formed a uniform layer covering and occluded with crystalloid substances in dentinal tubules.
水、土中硫酸盐对混凝土结晶腐蚀，经工程实践和实验研究证明是受宏观气候影响最大的一类腐蚀。
It is proved by practice and tests that crystallizable erosion of concrete by sulfates in water and soil is one of the most serious ones influenced by macroclimate.
分离盐经兑卤结晶工艺处理，可得含量大于99.1%的氯化钠。
Sodium chloride which content was more than 99.1% could be got from separation salt by adding brine crystallization method.
主力产品“博斯美”纤瓷板，系本公司经数年精心研究开发的结晶成果，是陶瓷界的一大革新产品。
The staple product "Bosimei" fibrous vitrolite is a crystallization of several years R&D of our company and an innovative product in the ceramic circle.
糯米粉经羟丙基化变性后，颗粒形貌和X -光衍射图样发生变化，结晶区被削弱。
The changes of morphology, X-ray diffraction pattern and weaken of crystalline structure of the granules took place when the glutinous rice flour was hydroxypropylated.
应用取向分布函数(odf)研究和分析了3104铝合金经不同工艺退火后的再结晶织构。
The recrystallization textures after different annealing processes of 3104 aluminium alloy had been investigated by means of orientation distribution functions (ODFs).
粗产物经硫酸铜溶液萃取、硅胶过滤、重结晶、真空升华进行分离提纯得到纯产品。
The products obtained were purified by extraction with copper sulfate solution, filtration through silica gel, recrystallization and vacuum sublimation.
考察了热经时处理对聚甲醛(POM)结晶行为的影响。
The influence of heat treatment on the crystallization behavior of polyoxymethylene (POM) was investigated.
经丙三醇增塑后，超微淀粉结晶度低达9.3%，其加工性能得到极大改善，可用于制备食品级生物降解包装膜。
After plasticised by glycerol, its crystallinity becomes 9.3%. In this way, the mechanical property of starch is improved and it can be applied to food package film.
二段浸出后的滤液用二氧化硫烟道气还原，还原液经冷冻结晶、水溶、过滤、精制后可得纯度较高的精白砷。
High purity arsenic trioxid was obtained from the 2nd stage filtrate by reduction with SO2 flue gas, freeze crystallization, water dissolving, filtering and refining.
经重结晶后用薄层扫描法测定含量达99.28%，是一种简便易行的方法。
After recrystallizing the oridonin content is determined by TIC Scanning to be as high as 99.28%.
淬火组织经回火后，相变再结晶温度有所降低。
After tempering, structure inheritance reduces, the recrystallization temperature reduces.
单峰胰岛素经deae琼脂糖快流速离子交换层析后用醋酸锌结晶，得到结晶单组分胰岛素。
Single peak insulin was purified by using DEAE-Sepharose fast flow ion exchange chromatography and crystallizing with zinc component.
胡麻纤维经碱改性后，纤维的聚合度、结晶度和取向度都有不同程度的下降，纤维上染率也有了明显提高。
The polymerization degree, crystallinity and orientation degree of the oil-flax fibers were decreased differently after the basic modification, and the dye pickup was obviously improved.
经离心后的沉淀物及低温真空抽湿干燥后的结晶体作为垃圾物另行处理。
A centrifugated deposit and a dried crystal of which the humidity is taken out at low temperature and in vacuum are used as garbage to be separately treated.
用IR研究了经射线辐射的精制棉纤维素的相对结晶度的变化，结果表明随辐射剂量的加大，棉纤维素的相对结晶度逐渐减小。
The relative crystallinity of refined cotton cellulose was studied by IR. The results shows that the relative crystallinity of cellulose decrease with the increasing of radiation dose .
方法：应用主客体识别原理，选择主体分子，经重结晶从挥发油中选择分离单一化学成分。
Method: the host molecule was selected and a single chemical component isolated from volatile oil by the host guest recognition.
最佳酶处理条件下，CTMP经纤维素酶或木聚糖酶处理后，纸浆的得率基本未受影响，纸浆的结晶指数变化也不大。
The pulp yields were basically uninfluenced after enzymatic treatment under the optimal treatment condition. The crystallization index of the fibers changed little.
结果表明：经电脉冲处理的纯铜再结晶过程向高温区推移，使纯铜的热稳定性、耐热性能得到了改善。
The results show that the recrystallizing temperature of pure copper are raised to a higher temperature range, which improves the thermal stability and bearing resistance to high temperature.
粗提物经柱层析分离，重结晶，再经过超临界流体沉淀处理后，可提高叶黄素的纯度。
After column chromatographic separation, re-crystallization treatment and supercritical fluid precipitation treatment, the purity of lutein is improved.
该沉淀经硝酸溶解和浓缩结晶可以得到硝酸铜，其回收率为82.32%(以铜含量为基准)。
By treating this precipitate with nitrous acid followed by a recrystallization process, copper (II) nitrate was recovered in 82.32% yield.
经x射线衍射分析，纯钛表面经阳极氧化处理后，其表面生成了一层非晶态的氧化钛薄膜，并且钛晶体的各个表面沿不同结晶方向的腐蚀速率不相同。
XRD results indicate that amorphous titanium oxide film is formed on the surface after anodic oxidation, and corrosion rates of titanium crystal vary along different crystalline orientation.
经x射线衍射分析，纯钛表面经阳极氧化处理后，其表面生成了一层非晶态的氧化钛薄膜，并且钛晶体的各个表面沿不同结晶方向的腐蚀速率不相同。
XRD results indicate that amorphous titanium oxide film is formed on the surface after anodic oxidation, and corrosion rates of titanium crystal vary along different crystalline orientation.
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