查询词典 phosphorus

Part Ⅰ The Research of Chiral Phosphorus Catalysts in the Enantioselective Borane Reduction of Prochiral Ketones ABSTRACT In this paper, the preparation of varied types of chiral phosphorus ligands and their applications as catalysts in the asymmetric borane reduction of prochiral ketones were investigated.

第一部分对映选择的潜手性酮的硼烷还原反应中手性磷催化剂的研究本文研究了多种不同类型的手性磷配体催化剂的合成及其在酮的不对称硼烷还原反应中的应用。

The feldspars are the main reservoir of the whole rock phosphorus, and the phosphorus goes into feldspars structure in the form of PAlSi-2 substitution.

，长石是磷的主要赋存矿物，磷以PAlSi-2替换方式进入长石结构中。

On the other hand, fertilizer of CaHPCu is cheap and the high degree of purity (the content of P_2O_5 is 27 -30%)can improve phosphorus in soil, reduce production cost and promotes agricultural effectiveness. The content P in CaHPO_4 slow release in calcareous soil. Besides, the addition of HA activates phosphorus in CaHPO_4 and in soil, increases organics in soil, which promotes crops quality and yield.

一方面由于磷酸氢钙的纯度高，与过磷酸钙相比重金属等杂质含量较少，能有效减少对土壤及水体的污染；另一方面磷酸氢钙价格低廉，P_2O_5，含量可以达到27～30%，在石灰性土壤中本身就是一种缓效磷；腐植酸的添加，活化了磷酸氢钙中的枸溶磷，同时可能改善了土壤团粒结构，为作物优质、高产奠定了良好的基础。

Accumulating of phosphorus and long-term applying organic fertilizer were leading factors of making phosphorus move downward.

磷素在土壤中的积累和长期施用有机肥是导致土壤磷素向下层移动的主要因素。

See from the physiological index:All the tomatoes seedlings,Which have Solution culture Lacks of nitrogen , phosphorus , potassium and iron,It's Chlorophyll content、soluble sugar content、proteid content、nitrate reductase activity are all less than that have fully solution culture,These results indicate that nitrogen , phosphorus , potassium and iron have grave implications for plant growth.

从各生理指标来看：叶绿素含量、可溶性糖含量、蛋白质含量、硝酸还原酶活性，缺氮、缺钾、缺铁、缺磷培养的番茄幼苗均低于完全液培养的。以上结果表明缺氮、缺磷、缺钾、缺铁对植物生长有严重的影响。

The presence of these resonance of phosphorus in at least two types of phosphorus environments. The spectra of nanorod contained typical bands of hexahedra Ca(superscript 2+)at 200 nm. The Eg values for the HA of microcrystalline, nanorod samples were 1.60 and 1.64ev, respectively. The FTIR spectra of the nanorods include two types of vibration; three PO4(superscript 3-) stretching modes at 956.5, 1 026.1 and 1 108.7cm^(-1) band were attributed to the vi (PO4), v3 (PO4), v3 (PO4) modes respectively.

结果 HA纳米粒的平均尺寸为。10~30nm；共振分析表明，磷至少以2种类型存在；在200nm波长处，光谱包含六面体Ca(上标 2+)典型的光谱带；HA纳米粒微晶的Eg值分别为1.60和1.64ev；傅里叶变换红外光谱中包含2种振波；在956.5、1026.1和1 108.7cm光带处的3种PO4(上标 3-)曲态分别为v1(PO4)、v3(PO4)、v3(PO4)。

The presence of these resonance of phosphorus in at least two types of phosphorus environments. The spectra of nanorod contained typical bands of hexahedra Ca2+ at 200 nm. The Eg values for the HA of microcrystalline, nanorod samples were 1.60and 1.64ev, respectively. The FTIR spectra of the nanorods include two types of vibration; three PO43- stretching modes at 956.5, 1 026.1 and 1 108.7cm-1 band were attributed to the v1 (PO4), v3 (PO4), v3 (PO4) modes respectively.

结果 HA纳米粒的平均尺寸为。10～30 nm；共振分析表明，磷至少以2种类型存在；在200 nm波长处，光谱包含六面体Ca2+典型的光谱带；HA纳米粒微晶的Eg值分别为1.60和1.64 ev；傅里叶变换红外光谱中包含2种振波；在956.5、1 026.1和1 108.7 cm光带处的3种PO43-曲态分别为v1(PO4)、v3(PO4)、v3(PO4)。

After different sediments ignitions, S was 1.64~2.25 times of that of raw sediment, higher obviously than the sediments without ignition. The aerating pretreatments of sediment and water caused the transformation of bioavailable form to nonavailable form. The bioavailable phosphorus decreased 7.02% and 0.23% respectively compared with that before pretreatment, but the bioavailable phosphorus of the blank test sediment increased 4.85%.

不同底泥灼烧后，最大吸附量为天然底泥的1.64~2.25倍，且明显高于未灼烧底泥对底泥曝气与对水曝气预处理使易被生物利用态磷向难被生物利用态磷转化，易被生物利用态磷较预处理前分别减少了7.02%和0.23%，而空白试验底泥的易被生物利用态磷则增加了4.85%。

They are the carry-over of the streams, the sediment releasing and the carry-over of the water from Qiantang River. Estimated the total phosphorus data of them as the boundary condition in calculating, Then according to the actual water diversion and water distribution of the West Lake of the four seasons in 2004, the source of total phosphorus and the data of the 11 concentration field measuring point, inversion analysis was carried out, then the comprehensive sedimentation constant k was obtained.

以总磷为模拟指标建立了水质模型，在入湖总磷负荷来源分析及测算的基础上，确定了西湖总磷的主要来源为入湖溪流携带、西湖底泥释磷、钱塘江引水携带，并测算了具体的数值作为浓度场计算的边界条件。

Maar lake are on the chlorophyll content and total phosphorus content of the monthly average for the positive correlation with inorganic nitrogen content are on a negative correlation with total nitrogen, inorganic phosphorus content of the monthly average no significant correlation.

玛珥湖中的叶绿素月均含量与总磷月均含量为正相关性，与无机氮月均含量为负相关性，而与总氮，无机磷月均含量相关性不显著。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。