白色粉末

为什么体操运动员在每次比赛前要在手上抹白色粉末？

Why do gymnasts rub that white powder on their hands before a routine ?

经MP、IR鉴定的结果判定，白色粉末状物为倒千里光裂碱-活性酯结合的季铵盐。

The white powder was quatermary salt of retronecine ester identified by MP , IR .

结果表明由红色诺卡氏菌P08菌株制备的NCWS为白色粉末，性质稳定，不溶于水、甲醇等有机溶媒。

N CWS was a white powder , insoluble in water and organic solvent like methanol .

氧化钇化学式：Y2O3说明：白色粉末。

Yttrium oxide Numerator formula : Y2O3 Description : white powder .

若发现电池液体泄漏，或有白色粉末残留物，请勿启动UPS。

If liquid can be seen leaking from the battery , or a white powdery residue is noticeable , do not switch the UPS on .

GLP1为灰白色粉末，经G。

GLP_1 was a gray white substance . G.

聚偏氟乙烯（PVDF）是一种白色粉末状结晶聚合物，其化学稳定性良好，室温下不受酸、碱等强氧化剂和卤素腐蚀。

Poly ( vinylidene ) fluoride ( PVDF ) is the typical semi-crystal polymer with its good properties of chemical and aging resistance for membrane formation .

dbcAMP钠盐为白色粉末，可溶于水与乙醇，对热和酸碱比较稳定。

DbcAMP - Na is stabilization to heat , acid and alkali .

阿莫西林（Amoxicillin）是一种广谱β-内酰胺类抗生素，为一种白色粉末，半衰期约为61.3分钟。

Amoxicillin is a common class broad-spectrum antibiotics drug which belong to β - lactam-antibiotics and is a kind of white powder . The half-life of amoxicillin is about 61.3 minutes .

用不同制备方法制得的交联PVP在水中具有不同的溶胀能力，呈现出的形态多种多样，有软凝胶、白色粉末，或多孔粒子，可满足不同的需求。

The crosslinked PVP prepared by different methods have different degree of crosslinking , which is characterized by the swelling power in water . The products may be soft gel or white powders or porous particles .

将冷冻后的白色粉末溶于色谱缓冲液，利用辛基琼脂糖凝胶CL-4B作为层析介质提取内氏放线菌的LTA。

The crude extraction as the frozen white powder was dissolved in chromatography buffer and purified by CL-4B agarose gel chromatography ( LTA ) .

经透析、除蛋白、冷冻干燥得到白色粉末状当归总多糖（AP-0）；

The white powder of Angelica polysaccharides ( AP-0 ) was obtained by dialyzing of the crude polysaccharide , protein depletion and freeze-drying .

结果：通过复乳-溶剂挥发法制备载AS-ODN可降解聚乳酸微球，呈白色粉末状，通过电镜观察其直径在10~20μm，其外观圆整。

AS-ODN-loaded biodegradable Polylactic acid microspheres were prepared by double emulsion - solvent evaporation method * The electron microscope observation showed that diameter of microspheres were between 10 to 20 μ m , and they take on round .

将30%～35%的废硫酸加热至90℃～100℃，在搅拌下加入生产CLT酸的还原铁泥，然后过滤、脱色、结晶，在300℃下脱水得硫酸亚铁白色粉末。

Waste sulfuric acid of about 30 % ~ 35 % concentration was heated to 90 ℃ ~ 100 ℃, then the iron slurry was introduced with stirring , followed by filtration , decolorization , crystallization and dehydration at 300 ℃, to give ferrous sulfate as a white powder ;

经水反复浸提后的包心芥菜残渣经稀碱浸提，浓缩，乙醇沉淀，透析，DEAE-Sepharose-FF色谱分离纯化得到一种白色粉末状多糖ALP-2。

After extraction with hot water for several times , the leaf mustard was dried and then a polysaccharide named ALP-2 was isolated from the dried leaf mustard with dilute alkali extraction , alcohol precipitation , and DEAE-Sepharose FF column chromatography .

铝合金框架完成了阳极氧化铝涂层或白色粉末。

Aluminium frame finished in anodised aluminium or powder coated white .

结果得到的贻贝多糖粗品呈白色粉末状，水溶性好；

Results Crude extract of mussel polysaccharide was of well water-solubility .

外观和气味：白色粉末，无气味。

Appearance and odor : white powder and no odor .

氨基葡萄糖盐酸盐先与甲醇钠反应生成氨基葡萄糖碱，再与三氧化硫反应，得白色粉末状产品。

The glucosamine hydrochloride reacted with sodium methylate to produce glucosamine base .

人造玛瑙填充料氢化铝，是白色粉末状。

Artificial onyx filler aluminum hydride is a white powder .

产品外观：白色粉末、无结团、无杂色颗粒。

Index : outward Appearance white powder , no cake .

一种白色粉末，用于防蛀牙膏。

A white powder that is used to fluoridate toothpaste .

它是一种无定形的无色或白色粉末。

It is an amorphous colorless or white powder .

说明：白色粉末，不溶于水，不溶于酸。

Description : White powder , insoluble in water , insoluble in mineral acids .

发现了一包白色粉末，刑侦专家正在对其进行分析。

A packet of white powder was found and police scientists are analysing it .

那这些白色粉末是怎么回事？这又是什么

Yeah , but what about the white powder , and what 's this ?

本品为白色粉末，无臭、无味。

This production is white powdery and tasteless .

用作颜料的白色粉末，有极强的遮盖能力和耐久性。

A white powder used as a pigment for its high covering power and durability .

白色粉末主要是生物分子。

White powder was primarily biological .

白色粉末或颗粒。

White powder or granule .