磷酸氢二铵

此外，中国将以关税配额取代对食糖、棉花和3种化肥（磷酸氢二铵、三元复合肥和尿素）实行的进口数量限制。

In addition , China would replace quantitative import restrictions on sugar , cotton and three types of fertilizers ( DAP , NPK and urea ) by TRQs .

以磷酸氢二铵、硝酸钙为原料，采用室温固相反应结合煅烧方法制备了纳米级羟基磷灰石（HAP）粉末。

Using diammonium phosphate , calcium nitrate and sodium bicarbonate as raw materials , the nano-sized hydroxyapatite was synthesized by the solid state reaction at room temperature .

结果表明，草酸和磷酸氢二铵对NaY分子筛的改性在不改变分子筛的结构的基础上可以有效地降低分子筛的酸性。

Both the modification techniques can reduce the acidity of NaY zeolite without any change on the structure .

本文利用单因素试验和二次通用旋转组合设计研究了磷酸氢二铵、硫酸铵、硫胺素等外加营养素对苹果酒酒精发酵结束后结合SO2量的影响。

The paper studied the effect of ammonium monoacid phosphate and other nutrients on binding sulfur dioxide after cider fermentation by single element experiments and rotary unitized design .

以磷酸氢二铵和偏钨酸铵为原料，采用高纯氢气程序升温还原磷钨酸盐的方法制备了非负载型WP和负载量为30%的负载型WP／γ-Al2O3催化剂。

Using diammonium phosphate and ammonium metatungstate as raw material , bulk tungsten phosphide catalyst and alumina supported tungsten phosphide catalysts were prepared by temperature-programmed reducing phosphate precursors in hydrogen .

对HMU、蜜胺（MA）、磷酸氢二铵（DAP）的配比、处理木材的压力、时间进行了正交实验；

A perpendicular experiment on the molar ratio of ingredients of HMU . Melamine ( MA ) and diammonium phosphate ( DAP ), the pressure and the time of fire retardant treatment of wood were done .

选择8种培养基进行振荡培养，从中选出YMA、YMA磷酸氢二铵、土壤浸出液、黄豆饼浸出液4种培养基进行深层发酵培养。

Eight kinds of culture media were designated to carrying on shaking culture , selecting the YMA , the YMA ammonium phosphate dibasic , the extraction of soil , the defatted soybean leaching solution four kinds of culture medium carried on submerged fermentation culture .

用氧在铜氨液中氧化磷化氢制备磷酸氢二铵的探索

Preparation Of Diammonium Phosphate From Hydrogen Phosphide In Copper Oxide-Ammonia Solution

食品添加剂磷酸氢二铵中铅含量的测定

Determination of Lead in Diammonium Hydrogen Phosphate

磷酸氢二铵/聚氨酯阻燃微胶囊界面聚合法合成研究及表征

Research on synthesis of diammonium hydrogen phosphate / polyurethane flame-retardant microcapsules by interfacial polymerization and its characterization

以磷酸氢二铵为基体改进剂，用石墨炉原子吸收光谱法测定铅。

Ammonium phosphate was adopted as matrix modifier to determinate the lead by graphite furnace atomic absorption spectrometry .

对尿素、复合肥、磷酸氢二铵三种化肥的配额税率执行1%的税率。

A 1 % quota tariff rate will be charged on urea , compound fertilizer and diammonium hydrogen phosphate .

淋洗实验表明，磷酸氢二铵处理杉木的产炭损失率达26.7%，而四溴双酚A处理的产炭损失率只有4.27%。

By elution experiment , char yield loss of wood treated by ammonium phosphate is 26.7 % , compared to 4.27 % by tetrabromobisphenol A.

具体研究内容如下：1.采用均相共沉淀法，以硝酸钙和磷酸氢二铵作为前驱体，在水溶液体系中成功合成出纳米级羟基磷灰石粒子。

The main research works were as follows : Firstly , hydroxyapatite nanoparticles were successfully synthesized in water solution system by homogeneous co-precipitation method with calcium nitrate and diammonium hydrogen phosphate as precursors .

选用可溶性的硝酸钙和磷酸氢二铵，在尿素用作添加剂的条件下用均相沉淀法合成了含部分碳酸根的针状羟基磷灰石晶体。

Calcium nitrate 4 hydrate and diammonium hydrogen orthophosphate are selected as initial materials ; needle like carbonate containing hydroxyapatite crystals are synthesized by homogeneous precipitation method with urea is used as additive .

则最佳的有机氮源添加物为鲜蛹，无机氮源为磷酸氢二铵。（3）维生素作为微量生长因子对蛹虫草生长有明显影响，但对有效成分的合成影响作用不大。

So the best source of organic nitrogen additive is fresh pupa , and inorganic nitrogen source is diammonium phosphate . ( 3 ) Vitamins as the trace growth factor for Cordyceps militaris growth has obvious effect .