查询词典 potassium amide

In this paper, the researchers describe a technique in which nanowires of potassium niobate were synthesized in a special hot water solution and separated using ultrasound.

这些研究员在文章中阐述了一种技术，在这项技术中，铌酸钾纳米线被合成为特殊的热水溶液并利用超声波使其分离。

Molecular weight of Chodatells sp. is about 6000, and about 9700 for Nitzschia sp.. After treatment with potassium permagnate and ozone, no significant change was found in the MW of their EPS.

经实验分析绿藻的分子量约为6000；矽藻的分子量约为9700，使用高锰酸钾或臭氧进行氧化试验后，其胞外物分子量并没有显著的变化。

From the valuves of activation energy and enthalpy,it was proved that the Ochrept'sbioavailability of nonexchangeable potassium was higher than the Ustochrepts'.

活化能和焓变的数据证明了褐土中的非交换性钾比潮土中的非交换性钾更容易释放，因而对植物也就更有效。

The kinectics characteristics of the nonexchangeable potassium release from the soil in Shaanxi is investigated with the Hsaturated resin absorbing method.

采用H饱和树脂吸收法研究了陕西6种土壤非交换钾释放的动力学性质。

The kinectics characteristics of the nonexchangeable potassium release from the soil in Shaanxi is investigated with the H-saturated resin absorbing method.

黄土性土壤中，非交换钾占植物可利用钾的86.0%～94.0%［1～3］，非交换钾主要指粘土矿物层间固定钾。

The results indicate that:① The quantity and velocity of the nonexchangeable potassium release from the loess soils are alike to sand soil,and are higher than the dark brown forest soil.

黑麦草、水稻和大米草生物耗竭试验证明，生物吸钾量中23.4%～87.0%的钾素来自层间钾，非交换钾是土壤钾库中对作物钾营养起重要作用的组分［4～6］。

For Ochrept,the total ofexchangeable and nonexchangeable can play as a standard for long time harvesting.Thecontribution of mineral potassium was larger in Ochrept than in Ustochrepts.

通过对不同形态钾素对植株吸钾的有效性分析，发现矿物钾对植株吸钾是有贡献的，但其贡献率因土壤不同而有很大的差异，褐土矿物钾的贡献率比潮土的要大。

Items of pH, soil solution K, exchangeable k, nonexchangeable K and potassium fixation index were all determined after incubation. The results indicated similar extent and trends of transformation among three K forms, that is, decreasing content of soil solution K and exchangeable K but increasing nonexchangeable K level were observed in both CaCO3 and SrCO3 treatments of two soils. As to CaCl2.2H2O addition, pH increase was not found and the change of three K forms was not significant when application rate raised.

结果显示CaCO3的添加，除能提升土壤pH值外，亦能使土壤中三种型态钾(溶液性钾，交换性钾，非交换性钾)有显著的改变，且改变程度及趋势均甚为相似，而CaCl2.2H2O的添加不会造成土壤pH的改变，且三种型态钾并不随CaCl2.2H2O用量的增加而有显著改变的现象。

The reaction of iodide-potassium iodide was negative to evaluate that EGP was nonstarch polysaccharides, ulfate was 11.92%, content of the total polysaccharide was 83%, mainly including 70.13% D-galactose and 17.95% 3,6-anhydro-galactose.

不溶于有机溶剂，碘-碘化钾反应呈阴性，说明提取物为非淀粉性多糖，产率为20%，总硫酸基含量11.92%，总糖含量83%，主要由70.13%的D-半乳糖和17.95%的3，6-内醚半乳糖组成。

It was different of contents of same mineral element inthe leaves of Malania olefera because of different areas, but the differences was notnotable. The influence of mineral element and soil elements on Malania olefera wasnitrogen, iron, manganese, zinc, potassium, copper from most to least, and four ofthem were belong to microelement. However, the lack of copper and serious lack ofzinc and iron in the soil influent the growth of Malania olefera. It had been made through the analysis of morphologic and anatomicalcharacteristics of root, stem, leaf, flower, fluid and seed that Malania olefera notonly had the primitive character but also had the evolution character, which had thevital significance on Olacaceae classification.

砂粒含量比大，通透性良好的土壤适宜蒜头果的生长；六个不同分布区土壤的有机质和全N含量极为丰富，速效K的含量水平中等，而土壤速效P的含量富贫差异较大；分布区土壤部分缺Cu，严重缺Zn、Fe；蒜头果叶片中的叶绿素含量与立地条件有着密切的关系；龙虎山样地立地条件比其他样地更适合蒜头果生长；不同立地上生长的蒜头果叶片中同一矿质元素含量有一定的差异，但差异不显著；土壤元素对蒜头果生长的影响由大到小依次为：N、Fe、Mn、Zn、K、Cu，其中四个是微量元素，而分布区土壤缺乏Cu，严重缺Zn、Fe而影响了蒜头果的生长发育。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。