dissolved nitrogen 中文意思是什麼

dissolved nitrogen 解釋
溶解氮
  • dissolved : 被溶乙炔
  • nitrogen : n 【化學】氮,氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
  1. This layer is rich in dissolved nitrogen and nitrides

    它能有效的分解氮和氮化物。
  2. Its headquarter is located at xinkailu no. 8, xuanhua district of zhangjiakou city. its main products include ziyun brand civil explosive products series : powdery ammonium nitrate explosive emulsion explosive industrial fuse ; ziyun brand fine chemical products series : glyoxalic acid 5 - 4 - hydroxyphenyl hydantoin p - hydroxyphenylacetic acid p - hydroxyphenylacetamide allantoin daidzein bufexamac ; aaa brand fine chemical products series : ethylamine methanol trimethylacetic acid tert - valeryl chloride ; great wall brand agricultural chemical fertilizer products series : ammonia urea ammonium bicarbonate ; chenguang brand calium carbide chenguang brand acetylene carbon black xuguang brand dissolved acetylene ; and the others as sulphur ammoina liquor oxygen nitrogen, etc.

    公司現有主要產品為,紫雲牌民爆產品系列:粉狀硝銨炸藥乳化炸藥工業導火索紫雲牌精細化工產品系列:乙醛酸對羥基苯海因對羥基苯乙酸對羥基苯乙酰胺尿囊素大豆甙元丁苯羥酸三a牌精細化工產品系列:乙基胺甲醇特戊酸特戊酰氯長城牌農化產品系列:合成氨尿素碳銨晨光牌電石,乙炔炭黑旭光牌溶解乙炔。
  3. Advances in studies on dissolved organic nitrogen in terrestrial ecosystems

    陸地生態系統可溶性有機氮研究進展
  4. A dynamic model for dissolved inorganic nitrogen ( din ) and phosphate ( po4 - p ) cycles and budgets in jiaozhou bay was established according to the principles of d - n - p - z model. in the model, 6 state variables ( din, po4 - p, phytoplankton, zooplankton, organic detritus, and dissolved organic nutrients ) were included. logically this model was divided into three modules - nutrients input, nutrients cycle in seawater, and output of both dissolved substances ( e. g

    本文根據n ? p ? z ? d模型的基本原理,建立了膠州灣氮、磷營養鹽循環收支動力學模型,主要包括營養鹽輸入,營養鹽生物、化學遷移和轉化內循環,溶解態和顆粒態物質水動力輸出3個邏輯模塊,涉及溶解無機氮( din ) 、磷酸鹽( po _ 4 - p ) 、浮游植物、浮遊動物、有機碎屑和溶解有機態營養鹽6個狀態變量。
  5. The activity of alkaline phosphatase was significantly correlated to the particle size and dissolved inorganic phosphorus negatively but opposite to organic matters and total nitrogen

    通過直線回歸分析發現,堿性磷酸酶活性與沉積物中粒徑、溶解無機磷含量呈顯著負相關,與總磷、有機質、總氮含量呈顯著正相關。
  6. The optode shows a satisfactory linear response for the dissolved oxygen in water ( r = 0. 9992, n = 6 ) the relative standard deviations were 1. 7 % 5. 0 %, the detection limit was 0. 03 11 g / ml ( sfn = 3 ). the exposure time and recovery time of the optode membrane are 30s and 90s respectively. the reversibility of the fluorescence signal was evaluated by alternate measurements in oxygen saturated water and nitrogen - purged water

    7 5刀之間,最低檢出限為0刀3pg il ;考察了標準海水中主要離子濃度放大1倍后的樣品溶液、鹽度在0 49范圍內的人工海水,以及ph在l 13范圍內的緩沖溶液等干擾因素的對膜響應的影響,結果無顯著性干擾;將本法與國標法相比較,驗證了方法的可用性,最終用於在線監測海水中的溶解氧。
  7. Low dissolved oxygen can be harmful to most aquatic life, whereas high 5 - day biochemical oxygen demand and ammonia nitrogen levels indicate the presence of organic pollution and sewage contamination

    溶解氧含量過低會危害大部分水生物的生存,而五天生化需氧量和氨氮水平則顯示河溪受有機物和生活污水污染。
  8. This product can supply general dissolved nitrogen, phosphorus and potassium, etc, thus to keep nourishment balance and physical function normal

    補充通常水溶性氮、磷、鉀等,提供均衡的營養,維護生理正常。
  9. The yeast strain 12y - 5 was identified at the species level using two yeast taxonomy systems published by. j. w. kreger - van rij ( 1984 ) [ 24 ] and j. a. barnett ( 1983 ). [ 19 ] in addition, the ability to assimilate several compounds as main sources of carbon and nitrogen was evaluated at the 500ml shake - flask and 3. 7l kfl bioreactor scales. effects of ph, temperature, concentration of dissolved oxygen and utilizable sugar on the growth rate of cells and the rate of the conversion of substrate into biomass were studied

    進而用正交試驗法對該酵母生長的培養基配方及影響生長的重要理化因素進行了較為深入的研究,在此基礎上對影響生長的重要理化因素進行了寬范圍的測驗:並以搖瓶最佳的培養條件為基礎,在3 . 7升kfl -生物反應器上進行了放大試驗。
  10. According to two constructed discriminant functions, it had significantly contribution in all discriminant variables, and explained the affected factor were total nitrogen, algae, dissolved oxygen and total phosphate, and was termed the nutrient affect factor

    經由典型判別分析的結果,在所建立的二個線性判別函數里,所含的判別變數均有顯著性的貢獻。
  11. The difference between the two results is used to compensate the influence of dissolved air or nitrogen

    兩個結果的差別可用來補償溶解空氣或氮氣的影響。
  12. ( 3 ) the farming systems which had a less degree of soil erosion and sedimentation, organic carbon was lost mainly through runoff but in farming systems in which soil erosion was serious such as in grass stripe, contour ditch, traditional farming system, the loss was through bed load. nitrogen loss through runoff was 81. 9 % - 93. 4 % of the total. this loss through runoff comprised 78 % - 87. 6 % dissolved nhvn and no " 3 - n although the former was slightly higher than latter as it made up 55. 14 % of the lost nitrogen

    ( 3 )侵蝕程度較輕,泥沙流失量較小,特別是推移質流失量較小的農作措施處理的徑流小區,如休閑處理、等高土埂和等高處理的小區中有機碳流失以徑流流失為主,相反,如水平草帶處理、水平溝處理和順坡農作處理的徑流小區中,有機碳流浙江大學博土學位論文失以推移質流失為主。
  13. The activity of proteinase was correlated to organic matters and total nitrogen negatively, but opposite to dissolved inorganic phosphorus

    與環境因子分析表明,蛋白酶活性與有機質、總氮呈負相關,而與溶解無機磷和沉積物粒徑呈正相關。
  14. No matter what kinds of sample, including the horizontal and vertical, the activity of catalase was correlated to organic matter, total nitrogen and total phosphorus positively, but opposite to dissolved inorganic phosphorus and particle size of sediments

    無論是水平還是垂直樣品,沉積物過氧化氫酶活性與有機質、總氮、總磷呈正相關,與溶解無機磷和沉積物粒徑呈負相關。
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