重氮酸 的英文怎麼說
中文拼音 [zhòngdànsuān]
重氮酸
英文
diazotic acid-
It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish
它可以直接使大片森林死亡，農作物枯萎；也會抑制土壤中有機物的分解和氮的固定，淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素，使土壤貧瘠化；還可使湖泊、河流酸化，並溶解土壤和水體底泥中的重金屬進入水中，毒害魚類；加速建築物和文物古跡的腐蝕和風化過程；可能危及人體健康。Using ethyl cyanoacetate, triethyl orthoformate and methylhydrazine as main raw materials, the herbicide pyrazosulfuron was prepared through the reactions of substitution, amination, cylclization, diazotization and chlorosulfonation
摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等為主要原料，通過取代、胺化、環化、重氮化和氯磺化等反應制得了除草劑吡嘧磺隆原料藥。In order to prove the anti - fatigue function, we do the experiment of mouse swimming with a heavy burden, the test of lactic acid, the test of lactic acid deoxidizing enzyme and the test of serum urea nitrogen respectively
為正實抗疲勞功能，分別作了蛇精口服液小鼠負重遊泳實驗，乳酸的測定，乳酸脫氧酶的測定，血清尿素氮的測定等四個項目試驗。Fertilizers - chemical analysis - determination of nitrogen - nitron gravimetric method for determination of nitrate nitrogen
肥料.第4部分:化學分析.第1節:氮含量測定.第1小節:硝酸鹽基氮硝酸氮重量測定法The first liquid oxygen and liquid nitrogen equipments of xichang and jiuquan satellite lauching base run normally until now, which has made important contribution for our coutry ' s aviation and spaceligh enterprise, thus attained national defense sicience and industry committ ' s appreciation
提供大連日酸氣體公司的氮液化設備，開創了日酸公司首用國產成套設備的先河；哈爾濱黎明氣體公司和成都僑源氣體公司則是我公司大型液氧液氮設備的重點用戶，由於過硬的技術和穩定的質量，短短二、三年時間內，這些用戶相繼增購了多套同類產品。Abstract : synthesis of sterically hindered dicyclohexylmethyl 、 l - menthyl and tert - butyl diazoacetate by diazo transfer was described on this paper
文摘:研究了用重氮轉移法合成具有較大空間位阻的重氮乙酸二環己基甲酯、 l -薄荷酯和叔丁酯。Erlongshan reservoir water quality was evaluated for class and class by monitoring continuously indexes and was unable to meet the requirement of central drinking water source due to higher cod ( subscript mn ), tn and tp and eutrophic environment
摘要連續監測和分析了二龍山水庫的水質，對水污染程度進行了評價，水庫高錳酸鹽指數、總氮和總磷超標嚴重，呈現富營養化狀態，總體水質為類和類，已無法滿足集中式生活飲用水水源地的水質要求。The present results indicated that enhanced uv - b radiation affected the absorption of nitrate, assimilation of nitrogen and synthesis of amino acids
這些都嚴重影響了紫萍對硝酸鹽的吸收、氮素的同化和氨基酸的合成，進而也影響了植物體內蛋白質的合成。Chromogenic reaction of 5, 7 - disulfonaphthalenediazo - aminoazo - benzene with cadmium and its apphcation
二磺酸基萘基重氮氨基偶氮苯與鎘的顯色反應及其應用Soil microbial biomass carbon, microbial biomass nitrogen, soil basal respiration and metabolic quotient all showed a decreasing trend under more than 15 mg. kg - 1 cadmium or more than 200 mg. kg - 1 lead, respectively. soil dehydrogenase, urease and acid phosphotase activities have a significant decrease, and the activities of soil catalase and invertase taking sencond place, while soil protease activities showed stable state
隨重金屬濃度增加，各指標下降幅度各有差別，其中微生物生物量碳、微生物生物量氮以及基礎呼吸和微生物代謝商隨重金屬濃度增加而明顯下降；土壤脫氫酶、脲酶、酸性磷酸酶活性的下降幅度較為明顯，過氧化氫酶、蔗糖酶活性次之，蛋白酶活性較為穩定。Disappearance and recurrence of nitrite accumulation in pilot - scale a o process
中試工藝中亞硝酸氮積累現象的消失與重現Portable stored - pressure powder series extinguishers are effective extinguishing appliances, in which extinguishing gaent sodium bicarbonate and ammonium phosphate powder together with the driveng gas - nitrogen are filled in a full - sealed container. during application, nitrogen drives to jetting powder for extinguishing, which is fast and effective in extinguishing, light in weight, convenient and simple in operation, safe and reliable
手提式乾粉系列滅火器是一種輕便高效的滅火器材，它使用磷酸銨鹽和碳酸氫鈉乾粉滅火劑和驅動氣體氮氣一起灌裝在全封閉的容器內，滅火時由氮氣驅動乾粉滅火劑噴射滅火，具有滅火速度快、重量輕、效率高、使用方便、靈活、安全、可靠等特點。Since the contamination of the original water, the pollutant in the water such as organic substance, ammonia nitrogen, algae toxin, finally nitrate, pelagic microbe and so on, whose concentration and species are becoming higher and more, deteriorate the quality of drinking water seriously
由於水源受到污染，水中的有機物、氨氮和硝酸鹽氮、藻類及毒素、浮遊動物等污染物的含量和種類不斷增多，嚴重影響了飲用水水質。This course demonstrate the important sorts of wastewater analysis, it includes chemical oxygen demand ( cod ), biochemical oxygen demand ( bod ), suspended solids ( ss ), volatile suspended solids ( vss ), ammonia nitrogen, organic nitrogen, nitrite nitrogen, nitrate nitrogen, orthophosphate, total phosphate, sulfate, and sulfide
本課程包含污水分析重要項目的原理解說及實驗分析，分析項目包括：化學需氧量、生化需氧量、懸浮固體物、揮發性懸浮固體物、氨氮、有機氮、亞硝酸鹽氮、硝酸鹽氮、正磷酸鹽、總磷、硫酸鹽及硫化物。Electrolytic polishing needs expensive equipments and jigs ; and chemical polishing make worse damage to environment and workers. easily make cyber - flashing sand plane
電解拋光設備投資大，需特殊夾具;化學拋光和電解拋光產生的氮氧化物和酸霧等嚴重污染環境並毒害人體Synthesis of 2, 6 - dibromo - 4 - sulfobenzendiazoaminoazobenzene and its color reaction with cadium
磺酸基苯偶氮重氮氨基苯偶氮苯的合成及與鎘的顯色反應Company in china engaged in developing and producing plastic and rubber coloring technology. products include color masterbatches for styrenics, polyolefins, pvc, and engineering plastics. overview of capabilities and products
-生產牡丹牌色鹽蘭vb ，色鹽蘭vrt ，色鹽蘭vb重氮磺酸鈉鹽，對硝基氯苯鄰磺酸等染料，包括公司簡介產品介紹等Color reaction of 3, 3 - disulfodiphenylaminodiazobenzene with nickel and its application
二磺酸基聯苯氨基重氮偶氮苯與鎳的顯色反應及其分析應用Nitrogen oxides ( nox ) have been recognized as acid rain precursor that impose a significant threat to the environment. coal combustion of power plant boilers is a major anthropogenic source of nox during the past decade, our government pay more and more attention to environment protection
氮的氧化物（即no _ x ）已經被公認為是造成酸雨的主要氣體之一，火電廠燃煤產生的氮氧化物是人類排放no _ x的主要來源，它嚴重地威脅著自然環境和人類的健康。Waste gas from manufacturing process - determination of chemical oxygen demand and nitrogen oxide - potassium dichromate oxidation and naphthylethylene diamine colorimetric method
工業廢氣耗氧值和氧化氮的測定重鉻酸鉀氧化萘乙二胺比色法分享友人