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Conclusion: Silica gel column chromatography and crystallization are simple and rapid methods to isolate gardenoside.

柱层析和重结方法是简单、速分离栀子苷的有效办法。

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The crystallization porperty of polycaprolactam(PA6)-polyethylene glycol(PEG)block copolymer wasinvestigated by means of electron microscope,x-ray diffraction,DSC and hot stage polarized microscope.

DSC、台、扫描电镜以及偏光显微镜等研究了PA6-PEG嵌段共聚物的结

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Cacodylic acid, or sodium cacodylate is an arsenical compound and popular crystallization buffer and is not compatible with reducing agents.

二甲胂和 二甲胂酸钠是结中常使的含砷化合物,它们不与还原剂共同使

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Beside fractional crystallization model,liquid immiscibility of Fluorine-rich granite magma is an important mechanism to form pegmatite and pegmatite type deposit.

除了结分异模式外,富氟花岗岩浆液态不混溶作也是伟岩成岩成矿的重要机制。

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The optimized conditions for phosphorus recovery as hydroxyapatite from wastewater by synthetic tobermorite through seeded crystallization were studied in this paper.

以合成雪硅钙石,探索了法以磷酸钙形式回收废水中磷的适宜条件。

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The starting temperature of crystallization for the peroxidation zirconic acid precursor during the heating process is higher that that of zirconium hydroxide.

过氧化氢有利于改善沉淀的过滤特性,缩短制备工艺周期。

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The dynamic rheological behavior and non-isothermal cold crystallization of poly(ethylene terephthalate)(PET)were studied to reflect the disentanglement effect of the pulsatile extrusion flow field.

通过分析 PET 熔体的动态流变参数和结动力学过程的变化,间接证实动态挤出聚合物熔体分子的解缠结作

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The effect of ethylene comonomer content on the crystallization, mechanical and viscoelastic properties of VERSIFY copolymers was studied by DSC, DMTA, POM and WAXD.

通过DSC,DMTA,POM和WAXD等手段,研究了乙烯共聚单体含量的变化对VERSIFY共聚物结、力学性和粘弹性的影响。

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NPR音讯 2019年11月合集

And the crystallization of salt breaks the brick, and also, it can pass through the marble. So deterioration is progressive.

结晶作用会破坏砖结构,而且盐可以穿过大理石。因此,恶化是逐渐发生

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厨房美味大比拼

No crystallization, as you can see.

如您所见,没有结晶。

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Geologic | 地理地质类科普

How fast magma cools affects crystallization and the texture of a rock.

岩浆冷却会影响结晶 和岩石质地。

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Scishow 精选系列

Previous studies had hypothesized that minor components could either help or hinder the crystallization process, by creating or blocking sites for crystal growth.

之前已有研究猜,微量组分可以产生堵塞晶体生长位点,从而促进结晶过程。

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自考英语二

The Great Wall is one of the world's cultural heritages, which is the crystallization of the wisdom of our ancient laboring people.

长城是世界文化遗产之一,是我们古代劳动人民智慧结晶。

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TED-Ed(视频版)

Many of the BMGs currently available are made from expensive metals, like palladium and zirconium, and they have to be really pure because any impurities can cause crystallization.

已知玻璃金属都是用昂贵材料做,比如钯和锆,并且用都是极纯净金属,因为任何杂质都会加结晶。

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亨利·亚当斯教育(下)

The form is never arbitrary, but is a sort of growth like crystallization, as any artist knows too well; for often the pencil or pen runs into side-paths and shapelessness, loses its relations, stops or is bogged.

形式从来不是随意,而是一种像结晶一样生长,这是任何艺术家都知道;因为铅笔钢笔经常会跑到旁路和乱七八糟地方,失去联系,停下来陷入困境。

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