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1·By flame atom absorption spectrometry, the contents of passium oxide, Sodium oxide in potassium feldspar are determined.

用火焰原子吸收分光光度法测定钾长石中的氧化钾、氧化钠。

2·For the route of selective separation and enrichment with sodium oxide, it is very difficult for one-step route to produce quite pure enriched slag.

对于钠系选择性分离富集路线，采用一步调渣法路线难以取得较高纯度的富钛渣。

3·The results showed that only small amount of alkalis in feldspar were extracted when autoclaved with water, and the majority of extract is sodium oxide.

结果表明：长石在水中碱溶出量比较少，溶出的碱主要是钠碱。

4·Below the glass strain temperature, interdiffusion coefficients are almost independence of sodium oxide concentration in the glasses and somewhat increase with long ion exchange time.

低于玻璃应变温度，互扩散系数几乎不依赖玻璃中的氧化钠浓度，而略随离子交换时间增加而增大。

5·Instead, it has an atmosphere made up of chemicals such as vaporized sodium, potassium and gaseous titanium oxide, which absorb light, but that still does not explain the planet's extreme blackness.

相反，TrES - 2b的大气层由气态钠、钾和三氧化钛这些可以吸收光线的化学物质组成，不过这也并不能为该行星极黑提供解释。

6·Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.

本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。

7·Dr Katz and his colleagues found that, although sodium ions flow readily in between adjacent aluminium-oxide layers of sodium beta-alumina, they cannot pass between them.

Katz博士和他的同事们发现, 在钠β-氧化铝中, 虽然钠离子流很容易在相邻的氧化铝层之间流动, 但是它们无法从中穿过.

8·The industrial practice on recovery of molybdenum from sulphide waste materials and production of qualified sodium molybdate and molybdenum oxide were presented.

介绍了从复杂的硫化物废料中回收钼，生产合格的钼酸钠和工业氧化钼的工业实践。

9·The influences of the factors, such as ethanol solution, sodium hydroxide, propylene oxide, reaction temperature, reaction time on apparent viscosity and water insoluble substance of HPG are studied.

研究了合成过程中乙醇溶液、氢氧化钠、环氧丙烷、反应温度、反应时间等因素对产品表观黏度和水不溶物含量的影响。

10·Using sodium carbonate and calcium oxide as cheap acid-capturer, perfume furfuryl butyrate was synthesized from furfuryl alcohol and butyryl chloride, and was characterized by GC and IR.

由丁酰氯和糠醇反应，以廉价的氧化钙和碳酸钠为复合束酸剂，合成了香料丁酸糠醇酯，并用IR、GC等进行了表征。