查询词典 nitrate

In buffered soil slurries with aeration, the concentrations of nitrite and nitrate were increased with elevated pH.

土壤悬液中NO_2-N和NO_3-N的浓度随pH的升高而升高。

The recombinant viruses, with the gene of reference RV strain VP2, field strain T114 VP6 and T73 G1-serotype VP7, respectively, co-infected Sf9 cell at a multiplicity of infection of 0.5. Harvested the supernatants of culture when the cells were lysed fully (about 7-10 days), or harvested cells before cell lysates (about 4-5 days after infection) and then treated the cells with lysing solution. The supernatants of and cell lysates were ultracentrifuged twice with 40% sucrose cushion at 93 000g, and the sediment products were harvested with TNC buffer. The purified VLPs samples were separated by SDS-PAGE, and then stained by Coomassie blue and silver nitrate and detected by Western blot to analyze the composition of VP2, VP6 and VP7 and their specificity. The morphologic structure of recombinant VLPs was detected by EM.

含标准株VP2、地方株T114 VP6和地方株T73 G1型VP7蛋白编码基因的重组病毒以0.5 MOI共感染Sf9细胞制备2／6／7病毒样颗粒，待细胞完全裂解后收获培养基上清或感染后5天细胞裂解前收获细胞并用裂解液裂解，培养基上清和细胞裂解液样品两次40％蔗糖垫93000g超速离心，沉淀样品经SDS-PAGE胶分离，用考马氏亮兰和硝酸银染色以及Western blot检测样品中VP2、VP6和VP7蛋白的组成以及特异性，电镜检测重组病毒样颗粒的形态结构。

A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonateas sedimentation .A includes alkaline-earth metals such as Mg, Ca, Sr, Ba and rare-earth metalsLa; while B includes transition metal Cr, Mn, Fe, Co and Ni.

本文以A，B的硝酸盐为原料，以氨水或碳酸钠为沉淀剂，利用混合沉淀的方法合成了系列钙钛矿型氧化物。A选碱土金属元素Mg、Ca、Sr、Ba等及稀土金属元素La；B选过渡金属元素Cr、Mn、Fe、Co、Ni等。

Nitrate reductase activity and the content of nitrogen nutrition and amino acidwere measured in different season, and their relationship with growth was analyzed.

不同季节测定了不同种源长白落叶松针叶中硝酸还原酶活力，氮素营养和氨基酸含量，分析了它们与生长的关系。

Influence of fluorine on filtration of acidinsoluble matter, crystal and filtration of calcium nitrate , ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, growing fine crystal and troubling filtration in production of nitrophosphate by nitric acid decomposing phosphate rock.

介绍在硝酸分解磷矿生产硝酸磷肥的过程中，杂质氟对酸不溶物过滤、硝酸钙结晶及过滤、母液的氨中和及料浆蒸发过程的影响。

The content of nitrate in the leaves in treatment 1 and the treatment with 50% white clover plus little ammonium sulphate as base fertilizer were lower and the soluble sugar higher than that in other fertilizer treatments, which indicated that the B. chinensis quality in that both treatments were superior to pure chemical fertilizer treatments.

同等氮量下，基肥全部用白三叶的处理，生菜的株高、叶宽、叶片数、地上部鲜重和地下部鲜重均显著高于对照，基肥减少50％白三叶用量的处理在追肥前生菜的生长与对照相比无显著差异，追施复合肥后生菜生长显著优于对照，株高、叶宽和地上部鲜重显著优于基肥全部用白三叶的处理。

In this ***,nano-particles of NiCuZn ferrites powders were prepared with nickel nitrate,zinc sulfate,copper sulfate and ferrous sulfate as starting materials and ammonium oxalate as the precipitator by employing co-precipitation technique using oxalate precursors.Excellent composition uniformity NiCuZn ferrite powder can be obtained after drying and calcination.Toroidal samples were obtained after being formed and sintered.

本文以硫酸镍、硫酸铜、硫酸锌、硫酸亚铁和草酸铵为原料，应用化学共沉淀法制得分布均匀的先驱粉，经烘干、煅烧制成成分均匀性极佳的NiCuZn铁氧体粉末，再经成形和烧结等工艺，最后制得环形NiCuZn铁氧体材料。

Mixtures of ammonium nitrate; ammonium sulphate, with more than 45

硝酸铵化肥A型——(A3)硝酸铵/硫酸铵的不易分离的均匀混合物，含有2069

In flame compositions, such as the stars that shoot out of rockets, potassium nitrate, salt s of antimony, and sulfur may be used;

火焰型烟火，如火箭喷发出的火焰，可采用硝酸钾、锑盐和硫磺。

We hope this study provides a fast, accurate and intelligent method to analyze the concentration of barium nitrate within the powder.

希望藉此研究成果能提供一快速、准确、灵敏之发射药硝酸钡分析方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。