nh 中文意思是什麼

The contents of organic matters, tn and tp in sediment layer from 0 - 20cm also decreased after 2 months of harvested, but nh / - n and no3 - - n increased due to the amelioration of transperancy and aeration, which accelerated ammonification and nitrification

2個月以後，收割區底泥0 - 20cm深度范圍內有摘要機質、 tn 、 tp含量明顯下降，收割改善了濕地的通風、透氣條件，促進了氨化和硝化作用的發生，使底泥中nh擴一n和n島一n含量上升。

Researching into tg - dt diagrams, we have concluded as follows : the initial decomposition temperature ( idct ) of polymer ( i ) is 220c and the first lost group ( flg ) ls carboxide ; the idct of polymer ( hi ) is 194cand the flg is - nh ; so the pyrolysis mechanisms of the two polymers are different

對聚合物（ d和聚合物（ l11 ）的tg一ot研究表明:聚合物（ d的開始分解溫度為220 ，失去的第一個基團為> c = 0 ;聚合物（ 11工）的開始分解溫度為! 94oc ，先失基團為一陽，兩者的熱解機理不盡相同。

Study on removal capacity of nh 4 - n, no - 2 - n, no - 3 - n by chlorella vulgaris in recirculation aquaculture system

循環水養殖系統中小球藻對三態氮的吸收能力研究

The precipitation of northern hemisphere has a significant negative trend, lapse rate of precipitation during djf is - 0. 028mm / a. for the southern hemisphere, has n ' t pass the statistical significance. the flood / drought years are pick out in 1948 - 2001 for djf over global, northern and southern hemisphere, six large - scale areas, the results point out has significant decadal change in the flood / drought years of global, nh and sh in djf, during 1940s - 1970s global flood in djf occurred frequently and from 1970s - 1990s global drought in djf occurred frequently

北半球有明顯的降水減少，約為- 0 . 028mm a ，南半球12 - 2月降水表現為極微弱的下降趨勢，且在統計上是不顯著的。劃分出了全球、南北半球、全球6個大尺度區域12 - 2月旱澇年，指出全球及北、南半球12 - 2月的旱澇有明顯的年代際變化。 70年代中期以前是全球洪澇多發期， 80年代到90年代為全球乾旱多發期。

In laboratory study, the experiments of nh / ? transport and transformation has been conducted with columns packed with homogeneous sandy loamy under saturated and unsaturated conditions

本文研究以室內外試驗為基礎，以數值模擬為手段，開展相應的研究工作。

Portsmouth herald news, nh - 1 hour ago

東部亞利桑那傳訊者， az - 29分鐘前

Portsmouth herald news, nh - 2 hours ago

Tracy新聞，加州- 17個小時前

Effect of the two vibration modes of ru - nh

之間以及吡嗪橋配體內的兩種振動模

In photography, a fixing bath containing nh ( univalent ion of ammonia ), which is used for removing silver halides from photosensitive emulsions

中義在攝影中，一種含銨的定影液，用來將感光乳劑中的銀粒子去掉。

Tp ( total phosphorus ) has accumulated in the whole layers of sediments from surface to 100cm. 2. the variation of non - point source pollutants after input to wetalnds with rain runoff and fields drainage the concentrations of cod, tn and nh / - n are decreased after input to wetalnds with rain runoff and fields drainage

降雨徑流和農田排水中非點源污染物進入溝渠濕地后的變化特徵降雨徑流和農田排水中的cod 、 tn 、 nh _ 4 ~ + - n進入濕地后，濃度均顯著降低，證明濕地對非點源污染物有很好的截留和凈化效果。

3. the fixing quantity of ammonium in soils tested increased with the increasing of the fixation time, and the fixation rate was the largest at the beginning several hours. the releasing amount of fixed nh / in soils tested increased with the incubation time, and the velocity of fixed - nh4 + - release was very slow

供試土壤對外源銨離子的累計固定量隨時間的延長而迅速增加，反應以開始階段固定速率最大，由同種母質發育的酸堿度不同的土壤對銨離子的固定能力不同。

By using ncep / ncar reanalysis data of height and wind, the inter - monthly lpac map, the climate lapc map, inter - annual anomaly map and mean variance map of monthly wind field of 850 and 500hpa and monthly height field of 850, 500, 150, 30hpa are calculated in a globe - belt area, which situates between 30 s and 75 n, from december 1957 to december 1997, according them we analysis the rule of the season transfer and anomaly of nh mean circulation. the results show that the climate map of lapc can describe the seasonal transfer process of large scale circulation better. the advance process of summer circulation establish is form south to north at the middle and lower level of the troposphere, that is reflected primly in the inter - monthly wind and pressure map of lapc ; at lower lever of stratosphere, the establish process is simulate to that of troposphere, and reflect of process of that the south asia high toward plateau ; at middle stratosphere the summer circulation establish begins at middle and high latitude initially, and then transmits to low latitude gradually, while the seasonal variability in mid - stratosphere is stronger than it in troposphere and low - stratosphere

利用ncep ncar再分析高度場和風場資料，計算了30 s 75 n球帶區域1957年12月至1997年12月逐月850 、 500hpa風場及850 、 500 、 150 、 30hpa高度場月際局地型相似系數圖、多年平均圖（即氣候lpac圖） 、年際異常圖及均方差圖，在此基礎上，分析了北半球平均環流季節轉換及其異常的規律。分析表明，氣候局地型相似系數圖較好地給出了大尺度環流季節轉換發生的過程：在對流層中、下部，風、壓場月際局地型相似系數圖清楚地反映了夏季型環流建立由南向北的推進過程；低平流層夏季型環流的建立與對流層接近，其中，南亞高壓上高原過程有明顯反映：中平流層，夏季型環流的建立明顯表現為從中、高緯度開始，逐步向低緯傳播的特徵，且變化較對流層和低平流層明顯。

The vibrations of ru - terminal ligands q - mode and intra - bridged ligand 6a mode as well as their combination in the mixed valence taube ion are studied by using density functional theory method under the borh - oppenheimer approximation. it is found that these three vibrations all are harmonic vibrations. and q - vibration causes the charges on ru1 and ru2 atoms to be asymmetrical distribution. the charge transfer between ru and terminal nh

在borh - oppenheimer近似下，應用量子化學的密度泛函理論方法研究了混合價taube離子中金屬與配體之間的振動q -振動模式橋配體內的振動6a振動模式以及這兩種振動的組合。發現這三種振動模式都可以看成簡諧振動。

Injection of saline stimulated the increase of nh 2h postinjection ( pi ) and then declined to the bc

注射生理鹽水注射后可使血細胞數量在2h內增加，但隨後下降至正常值附近波動。

Experimental analysis of impact of nh 4 on slowing down the wet phosphoric acid fouling

4對減緩濕法磷酸結垢影響的實驗分析

The latter electrode is made by a 3 - electrode system with cv voltage. in the system, ta foil is acted as the working electrode, a pt foil as the assistant electrode and ag / agcl electrode as the reference electrode. stuff rucl _ 3 ? nh _ 2o is confected into electrolyte. after electrolyzing with cv voltage, ru ion can deposit on ta foil in the fashion of hydrated ru compound

在循環伏安法中，用原料水合三氯化釕配製成的電解液，將鉭片作工作電極、鉑片作輔助電極、銀/氯化銀電極作參比電極組成三電極系統，向電解池通入循環伏安的電壓進行電解，使釕離子以水合釕化物的形式沉積在鉭基體上。

Water quality - determination of dissolved li, na, nh 4, k, mn 2, ca 2, mg 2, sr 2 and ba 2 using ion chromatography - method for water and waste water

水質.用離子色譜法測定鋰離子鈉離子銨離子鉀離子錳離子鈣離子鎂離子鍶離子和鋇離子含量.適用於水和廢水的方法

Some results are as follows : the highest concentration of nh 4 + - n in leachate is closely related with urea quantity applied at 20cm depth, but not different significantly related at 60cm and 120cm depth

其試驗結果如下：在不同尿素施用量情況下，各處理中20cm處滲漏液中nh _ 4 ~ + - n最高濃度值與施肥量密切相關，但60cm和120cm處滲漏液中nh _ 4 ~ + - n濃度與施肥量關系不大。

The text calculated the price elasticity of demand of nr ( natural rubber ) and the cross elasticity of demand of nh and sr by establishing the model of nr ' s demand function

摘要通過建立天然橡膠需求函數模型，估算了天然橡膠的需求彈性系數和天然橡膠與合成橡膠的替代彈性系數。

Abstract : causes to the fracture of nh silicon steel slab have been analyzed by means of optical microscope and transmitting optical microscope

文摘:採用光學顯微鏡和透射電鏡等分析，方法對nh硅鋼板坯斷裂進行了分析。