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- The concentrations of nitrogen dioxide and ozone also exceed the objectives for a few days in a year. 二氧化氮及臭氧的濃度，每年也有幾天超出了空氣質(zhì)素指標。
- Changes in sensory perception are the most sensitive indicators of the presence of nitrogen dioxide. 感覺(jué)的改變是二氧化氮存在的最靈敏的標志。
- High outdoor levels of nitrogen dioxide apparently raise the risk of sudden infant death syndrome (SIDS), according to California-based researchers. 美國加州大學(xué)的研究人員日前表示，戶(hù)外高濃度的二氧化氮氣會(huì )增加發(fā)生嬰兒猝死綜合癥（SIDS）的危險。
- Emissions of nitrogen dioxide and fine particulate matter, mainly from the transport sector, are of concern in all cities currently experiencing rapid motorization. 二氧化氮和微小顆粒物的排放，主要來(lái)自于交通工具，是目前所有正在經(jīng)歷快速機動(dòng)化的城市所關(guān)心的問(wèn)題。
- According to the European Space Agency, Beijing and its neighbouring north-east Chinese provinces have the planet's worst levels of nitrogen dioxide, which can cause fatal damage to the lungs. 依據歐洲空間局,北京及周邊的東北省份的空氣是全球二氧化氮成分最高的地區。二氧化氮對肺造成致命的傷害。
- The article introduces the process of improving atomizer burner of boiler and burning condition to reduce the content of nitrogen oxide in flue gas. 本文對太原第一熱電廠(chǎng)通過(guò)改造鍋爐噴燃器,改善燃燒條件以降低煙氣中氮氧化物含量的過(guò)程進(jìn)行介紹。
- So combining formaldehyde method with Mohr method,a method that analyze continuouly the content of nitrogen and chlorine is established. 為此將甲醛法和莫爾法相結合,建立了一種連續分析化肥產(chǎn)品中氮和氯的方法。
- Air consists chiefly of nitrogen. 空氣主要由氮氣組成。
- The content of nitrogen and chlorine in fertilizer is usually measured,but routine analysis method needs weighing twice,consuming long time and strict condition. 化肥中氮和氯的含量是經(jīng)常需檢測的指標,但常規分析方法為兩次稱(chēng)量,耗時(shí)長(cháng),條件控制嚴格。
- The relatively high content of nitrogen in gas in Yingnan 2 well might be the results of high temperature pyrolysis of kerogen in Cambrian mudstone and CO2 is organic genetic gas. 英南2井天然氣中較高含量氮氣可能與寒武系泥巖干酪根高溫裂解相關(guān)；CO2為有機成因氣。
- Abstract : The content of nitrogen and phosphorus in the different parts of water hyacinth was tested, and some other economic crops were compared with it in the paper. 摘要 ： 分析、研究了水葫蘆植株不同生長(cháng)時(shí)期、不同部位的全氮和全磷含量，并與常見(jiàn)的經(jīng)濟作物進(jìn)行比較。
- The effect of nitrogen form,yellowing temperature,curing facility on the content of nitrate, nitrite and Tobacco-specific nitrosmaines (TSNA) were studied. 探討了氮素形態(tài)、變黃溫度、烘烤設備等因素對烤煙煙葉中硝酸鹽、亞硝酸鹽和煙草特有亞硝胺(TSNA)含量的影響。
- Toxic effect of nitrogen dioxide 二氧化氮毒性作用
- The content of nitrogen and phosphorus in the different parts of water hyacinth was tested, and some other economic crops were compared with it in the paper. 分析、研究了水葫蘆植株不同生長(cháng)時(shí)期、不同部位的全氮和全磷含量,并與常見(jiàn)的經(jīng)濟作物進(jìn)行比較。
- What is the content of the crude nitrogen. 污氮的含氧量是多少?
- Test of nitrogen dioxide in museum by solid absorbent sampling 固體主動(dòng)采樣法用于檢測博物館內二氧化氮
- The contents of nitrogen, phosphate, potassium, iron, magnesium and boron in wild rice plants and their corresponding soil were analyzed. 摘要對云南不同野生稻植株中氮、磷、鉀、鐵、鎂、硼的含量及其相應生長(cháng)土壤中礦質(zhì)元素含量進(jìn)行分析。
- The contents of nitrogen and phospho rous were lest in pod shell at 0. 781% and 0. 079% respectively. 莢皮中氮、磷含量最低，分別為0.;781%25和0
- The entire content of a book will be located on a single silicon chip. 整本書(shū)的內容只用一片硅芯片就可以裝下。
- Nitrogen dioxide and ozone may cause pulmonary edema. 二氧化炭和臭氧可以引起肺水腫。
