查询词典 nitrate

The energy of the complex molecule has been compensated by a hydrogen bond formed by, a proton bonding to a quinolyl nitrogen atom and a nitrate ion.

分子中有一个氢离子与另一个喹啉N原子结合并与硝酸根的氧原子形成氢键，从而使配合物分子在能量上得到补偿。

Through the introduction of N-catch crop with deep root system, it is possible to reutilize the nitrate-nitrogen leached out of root zone of vegetable in the vegetable-catch crop rotation system based on the phytoremediation principle.

另一方面，由于蔬菜的根系较浅，因此需要频繁的灌溉，这又使得累积在土壤中的氮素很容易被淋洗到根层以下，对作物基本无效。

The nitrate content of rhizomatous vegetable is lower than 198 mg/kg, and the leaf vegetable is 500 mg/kg.

介绍环保型蔬菜专用叶面肥配方设计的研究方法，提出了20个配方进行大田小区试验，优选出的配方经在蔬菜上施用后，产量增加，蔬菜中亚硝酸盐含量低于0.001mg/kg；根茎类蔬菜中硝酸盐含量低于198 mg/kg，叶菜类蔬菜中硝酸盐含量低于50 mg/kg，达到了无公害蔬菜的要求

The nitrate reductase activity,chlorophyll concentration and nitrogen content of tobacco leaf and total absorption area of tobacco rhizotaxy were significantly or extremely sign ificantly correlated with nitrogen concentration.

结果表明，不同基因型烟草对氮素营养的响应有明显差异，其硝酸盐还原酶活性、叶绿素含量、根系总吸收面积、氮含量均与氮浓度呈显著或极显著相关。

The invention is characterized in that absorbing agent is a multivariate compound salt which is formed by lithium nitrate, sodium thiocyanate and lithium rhodanate.

多元复合盐/氨溶液吸收制冷剂，它包括吸收剂和制冷剂，所述制冷剂为氨，其特征在于所述吸收剂为硝酸锂、硫氰酸钠和硫氰酸锂组成的多元复合盐。

The improved method of determination of nitrate with salicylate is simple,rapid and accurate,and can be used for the analysis of NO - 3 in soils and water.

因此 ，探寻一种简便、快速、准确的 NO3 - N测定方法是土壤及环境科技工作者值得深入研究的问题。有关水杨酸法测

Objective To study the toxicity of samarium nitrate on male mice's testicle tissue.

目的 探讨稀土元素钐对雄性小鼠睾丸的毒性作用。

Methods Samarium nitrate was administrated to mice at different doses (0,5,50,500,2000mg/L) for 90d.The contents of samarium and trace elements in testicle were observed.

110只雄性ICR分为5组，小鼠分别自由饮用0，5，50，500和2 000mg/L的硝酸钐水溶液90d，测定睾丸内钐和微量元素含量的变化。

The mixed solution of Sesbania Gum and silver nitrate was induced bylaser .

使用激光诱导方法，以田菁胶和硝酸银为诱导对象，在光纤端面上沉积银纳米粒子。

Choosing the close Fulaowenpao wetland and open Erbaifangzi wetland as two typical areas, the horizontal movement processes of nitrate nitrogen in Xianghai wetland were studied simulatively with KNO3 tracer.

选择封闭性的付老文泡湿地和开放性的二百方子湿地作为两个典型区，以KNO3为示踪剂，模拟研究了硝态氮在向海沼泽湿地中的水平运移过程。

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。