查询词典 leaching

In this paper,the research history and status were summarized.The processes of soil nitrogen input,interior transformation and output,including litter return,fertilization,atmosphere desposition,ammonification nitrogen fixation,ammonification,nitrification,denitrification,plant uptake,NH 3 volatilization and NO 3- leaching,were introduced.Finally,the tendency of study on soil nitrogen...

本文综述了森林土壤氮素转化与循环的研究历程和现状；介绍了凋落物的归还、施肥、大气沉降、自生固氮、氨化、硝化、反硝化、植物吸收、NH3 的挥发、NO3 -淋溶等土壤氮素输入、转化和输出的途径和过程；最后从研究目标、研究方法、研究对象和研究内容 4个方面归纳了森林土壤氮素转化与循环的发展趋势。

Using these diagrams, thermodynamic analysis is carried out to show the effect of technical conditions on soda decomposition of scheelite. It appears that the concentration of has direct effect on soda decomposition of scheelite. When the alkalinity is low, will hydrolyze to , accordingly the decomposition rate of scheelite becomes lower because of the decrease of . So in order to get higher leaching rate in industry practice, it is necessary to use enough amount of soda to serve as digestion reagent and, certain amount of NaOH to maintain high enough alkalinity.

利用这些热力学平衡图对Na2CO3分解白钨矿的工艺条件进行了分析，认为溶液中浓度直接影响白钨矿分解，而当碱度较低时，Na2CO3将水解生成，从而降低浓度，进而降低白钨矿的分解率；故在工业实践中，为使钨最大限度地转入溶液，除了保证足够的Na2CO3用量，还必需添加NaOH以维持一定碱度。

Linfen Dolman is the first Western business, it is for Jiang Zemin, Zhu Rong Zhu Rongji, Li Peng, Thai King Pu-country friends, Princess Division pass leaching, Cambodian King Norodom Sihanouk Head of State, such as the chef and Mr.

多尔曼是临汾首家经营的西餐，它是为江泽民、朱溶基、李鹏、泰国国王普国朋、公主司淋通、柬埔寨国王西哈努克等国家元首主厨的杨青宇先生经营并亲自主厨的。

Nitrogen leaching to the groundwater is one of the major nitrogen loss ways in dry land farming systems,and contributes to a large extent in groundwater pollution.

渗漏流失是旱地农田氮素流失的主要途径之一，也是引起地下水污染的重要原因。

Field irrigation experiment of different salt concentration is conducted for wheat,maize and sunflower with normal quota and leaching quota in this paper,and study on crop growth,accumulation law of dry matter above ground and crop yield of 3 crops.

在田间试验条件下，采用正常灌溉定额和淋洗灌溉定额2种灌溉水平，对小麦、玉米、葵花3种作物进行了不同灌溉水矿化度处理的灌溉试验，对3种作物的生长过程、地上部干物质积累规律、作物产量等进行了研究。

The larger particles contained in the pulverized product which has advanced into the elutriation device 2 are precipitated at the bottom portion of the elutriation device 2 and sucked by the sand pump 6 to also be returned to the tower shell 1 wherein the larger particles are again subjected to pulverization and leaching.

较大的颗粒在煤粉产品已经迈入了淘洗装置 2 沉淀在底层部分的淘洗装置 2 则是将由砂泵 6 也应该归还给塔壳里一大颗粒再次遭受为了粉碎和浸出。

The effects of moulding pressure, temperature, urea content and oxidation time of keratin on urea leaching rate were investigated by means of soil column eluviation experiment.

用土柱淋溶试验考察了模压压强、模压温度、尿素含量和角蛋白氧化时间对头发角蛋白载体缓释尿素肥料淋溶速率的影响，并与商业化的缓释肥料Luxecote和SCU的淋溶速率进行了对比。

The thermodynamic and equilibrium constant criterion of the silver leaching with cyanide is deduced.

推导计算了氰化物浸银过程的热力学及平衡常数判据。

Key: tofu hot water to a small, bean curd hook to good Euryale ferox leaching immature oil, not water after Zhuangpan

关键：烫豆腐丁的水要开，豆腐勾好芡要淋熟油，装盘后不会出水

Second, extractant N902 is utilized to extract copper in the leaching solution and has good selectivity to copper.

结果表明，萃取剂N902对铜具有较好的选择性。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。