查询词典 nitrogen-free

With 31 batteries " three nitrogen " data,the paper researches " three nitrogen " content changes influenced by temperature and interfusing air s time.

利用现场实测的31组&三氮&数据，研究了温度及混入空气时间对地热水中&三氮&质量浓度变化规律的影响。

Lateral 4 rows and 2 laterals 4 rows increase the amount of nitrogen application and reduce the volume of water will help improve cotton WUE, 2 laterals 6 rows volume control nitrogen and reduction water improve irrigation WUE.

棉花产量效应表明，1带4行和2带4行增加施氮量和灌水量有利于提高产量，2带6行则增加灌水量和控制施肥量有利于提高产量。

Of the nitrogen supplied as inorganic fertilizer is lost under two treatments, and 30% under FAR and 26% under RAR of which leaches to depths over 40 cm of soil profile. It is therefore necessary to understand whether leached nitrogen is utilizable by deep-rooted crops.

两种施肥处理均导致65%左右的氮素损失，其中习惯施氮和推荐施氮分别导致30%和26%的氮素淋洗到40 cm以下土层，为此有必要种植蔬菜后利用深根系粮食作物吸收土壤下层氮素来降低蔬菜生产对环境的影响。

In order to study the law of nitrogen leaching losses from the ponded paddy rice field under the conditions of drainage, based on the theories of potential energy and solute transportation a dynamic mixed simulative model for water and nitrogen in the field is suggested in this paper with combining the methods of stream-web and dynamics.

为研究淹灌稻田在排水条件下的氮素淋失规律，根据势能理论及溶质运移理论提出了流网法与动力学方法相结合的田间水氮动态混合模拟模型。

The nitrogen removal experiment implies that the nitrogen removal efficiency is very high. The ratio of NH_4~--N/TN is approximately equal to the ratio of TN removal. TN removal efficiency is mainly affected by the influent NH_4~--N concentration, and the optimal TN removal efficiency can be prejudged by the ratio of influent NH_4~--N/TN.

通过对反应器的脱氮研究，发现该反应器的NH_4~--N去除率非常高，发现进水NH_4~--N／TN的百分比值基本上与总氮的去除率一致，脱氮的效果基本取决于进水氨的浓度，最佳的TN的去除效率能通过进水的NH_4~--N／TN比例来判断。

Degree of aggregation of soil increases and constitutive property gradually enhances from upper slope to lower slope; of various types of utilizing on the same slope, the distribution of soil nutrients appears different variance characters, and the content of organic matter, total nitrogen, and alkali-hydrolysable nitrogen of reforested land is highest, which distinguishing from other types; the content of total phosphorus, total potassium, rapidly available phosphorus and rapidly available potassium of farm land is highest, which is not distinguished from two other types of utilizing.

从上坡位至下坡位土壤团聚度随之增大，结构性逐渐增强；同一坡面不同的利用方式，土壤养分分布呈现出不同的分异特征。

Among them ability of richening nitrogen about 96% can be achieved using 1~# carbide of brown coal in condition of bed bigh 1.5m, bed diameter 0.02m, rich nitrogen ...

其中1~＃褐煤碳化物在床层高度 1.5m，直径 0.012m，富氮气体流速 123Nml／min，操作压力 4×10~5 Pa的条件下，富氮能力可达 96％左右，并通过分子试探等温线的分析，探讨了碳化物的孔隙特性。

Four main saccharifying technical conditions of wheat beer influencing α-amino nitrogen content of wort including wheat malt proportiong, the ratio of water and raw materials, holding time at 52 ℃, and holding time at 65 ℃ were optimized by response surface method and the mathematical model of each factor incluencing α-amino nitrogen content was established.

采用响应曲面分析法对影响小麦啤酒麦汁α-氨基氮含量的4个主要糖化工艺参数即小麦芽比例、水料比、52 ℃保温时间和65 ℃保温时间进行优化，建立了各因素对麦汁α-氨基氮含量影响的数学模型。

Has included filling of 3000 vials and stoppering on line; another stage included filling 3000 vials, transportation to the lyophilizer and then stoppering; a third stage included the filling of 3000 vials, loading in the lyophilizer, and exposure to a portion of the nitrogen flush and then stoppering.Since lyophilizer sterilization and sterilization of the nitrogen system used to backfill require separate validation, media fills should primarily validate the filling, transportation and loading aseptic operations.

第一部分是灌装3000瓶并且加塞，第二部分是灌装3000瓶，传递到冻干机中再全加塞，第三部分是灌装3000瓶，排放到冻干机内，暴露在氮气流下冻干机的灭菌和用于回填的无菌氮气系统分别进行验证，培养基灌装主要验证灌装、传递和摆放的无菌操作。

For example, one volume of liquid nitrogen at atmospheric pressure vaporizes to 694 volumes of nitrogen gas at 68°F (20°C).

例如，一个大气压下的单位体积的液态氮在68°F(20°C)时蒸发成694个单位体积的氮气。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。