As specified in the standard GB/ T 10209.2 2001, the whole process of determination of available P 2O 5 in diammonium phosphate ( DAP) requires about 3 hours.

1、

The last step was that GM was phosphated by phosphating agent-phosphorous pentoxide ( P205), then hydrolysised, basic neutralized to obtain the final products-PK.

第三步：由GM与磷酸化试剂五氧化二磷进行磷酸酯化反应，而后水解、碱中和，即制得终产物聚醚改性硅氧烷磷酸酯盐（PK）。

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2、

The structure and the acidic properties of H β zeolite were modified with phosphorus pentoxide added by using chemical vapour deposition method.

采用化学气相沉积法，研究了五氧化二磷对Hβ分子筛酸性和孔结构的改性。

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3、

Preparation p-n junction by phosphorus pentoxide sublimation, the most influence on square resistance is reaction time followed by flow and silicon reaction temperature, the least is phosphorus oxychloride diffusion.

五氧化二磷升华制备p-n结，对方块电阻影响最大的是反应时间，其次是气流量和硅片反应温度，P2O5升华温度影响较小。

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4、

Phosphorylation of high fatty alcohol with phosphorus pentoxide was studied with the aid of 31 P NMR spectrum.

采用31p NMR波谱对高碳脂肪醇与五氧化二磷的反应进行了研究，定量地表征了产物混合物中的各组分。

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5、

Sulfur incorporation in diamond was performed by B-S co-doping method via microwave plasma chemical vapour deposition ( MPCVD) technique on undoped Si as substrates. Dimethyl disulfide and boron oxide were the doping sources, which were diluted in acetone.

利用微波等离子体化学气相沉积（MPCVD）技术，以丙酮为碳源，用二甲基二硫和三氧化二硼作掺杂源，在硅衬底上制备了硼与硫共掺杂的金刚石薄膜。

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6、

We use hot-filament-assisted chemical vapor deposition ( HF-CVD) to prepare boron-doped diamond film on Si with B 2O 3. BDD film's growth condition was studied with Raman spectroscopy.

采用热灯丝CVD法在硅上制备金刚石薄膜，采用三氧化二硼制备硼掺杂金刚石膜.利用拉曼光谱分析硼掺杂金刚石膜的生长情况。

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7、

The conclusion showed: the effect of SiO_2 increased the viscosity was stronger than B_2O_3 did, the larger the SiO_2/ B_2O_3, the more the viscosity increased;

结果表明：二氧化硅对粘度的增加作用要比三氧化二硼强，SiO2/B2O3比值越大对玻璃粘度增大的越多；

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8、

Use of Co 2O 3 surface inoculation, composite ceramic shell boned with silica sol and ethyl silicate and vacuum pouring in investment casting for heat resistance alloy was introduced and the results were analyzed briefly.

概括地介绍了高温合金叶片的三氧化二钴表面孕育、硅溶胶硅酸乙酯复合型壳及真空浇注等精铸工艺，并对结果进行了简单的分析和说明。

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9、

Studies on Co_2O_3-Catalyzed Epoxidation of Cyclohexene in the System of Valeraldehyde and Molecular Oxygen

应用分子氧/正戊醛/三氧化二钴体系氧化环己烯的研究

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10、

The Direct Determination of the Noble Metal Element Iridium and Platinum in Al_2O_3 by Emission Spectroscopy

发射光谱法直接测定三氧化二铝中贵金属元素铂铱的含量

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11、

The Development of Self-healing Al_2O_3 Insulating Coating

自修复三氧化二铝涂层研究

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12、

The Catalytic Synthesis of Coumarin in the Presence of Potassium Fluoride Supported by Aluminium Oxide

三氧化二铝固载氟化钾催化合成香豆素

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13、

Study on Measuring Alumina in Chromium ores

铬矿石中三氧化二铝测定的研究

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14、

Condensed Phase Aluminium Oxide Particles Deposit on the Nozzle Throat and Its Theoretical Analysis

三氧化二铝粒子在喷管喉部沉积变化规律的理论分析

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15、

Investigation of α-al_2o_3 ultrafine particle size

α-三氧化二铝超微粒粒度的研究

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16、

Preliminary Studying of Recycling Aluminum from waste catalyst

废催化剂回收三氧化二铝的初步研究

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17、

Study on Impedance Improvement of Liquid Crystal by Al_2O_3

三氧化二铝改善液晶阻抗的研究

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18、

Preparation of polystyrene composite microshells doped with aluminum oxide

三氧化二铝-聚苯乙烯复合微球的制备

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19、

The method investigation on aluminum oxide assay in chromites

铬铁矿中三氧化二铝含量测定的方法研究

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20、

That's just aluminium oxide that the sunlight is scattering from.

这只是三氧化二铝的阳光是从。

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