The extracellular Mn-peroxidase secreted by Pycno-porus sanguineus K-2352 in high-nitrogen medium under absolute dark condition was studied.
对血红密孔菌在避光、高氮培养基中,产生胞外锰过氧化物酶进行了研究。
Although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have shown only an insignificant decline since 1993.
尽管在Donia的首都城市,新车的比例一直相对较高,那里的二氧化氮排放量自1993年以来仅略有下降。
But this can be avoided, the paper shows, if the high-yielding technologies of rich nations are adapted to work in poor nations, and if all nations use nitrogen fertilizers more efficiently.
但他们的文章同时指出,如果贫困国家采用富有国家的高产技术以及所有国家都更有效地使用氮肥的话,上面的情况是可以避免的。
High outdoor levels of nitrogen dioxide apparently raise the risk of sudden infant death syndrome (SIDS), according to California-based researchers.
美国加州大学的研究人员日前表示,户外高浓度的二氧化氮气会增加发生婴儿猝死综合症(SIDS)的危险。
NOx is produced when the nitrogen from the air reacts with oxygen under high engine temperature and pressure conditions.
在高温高压下,空气与氧气反应,产生了氮氧化物。
But the first-ever measurements of nitrogen trifluoride levels in the atmosphere, published recently in the journal Geophysical Research Letters show that emissions could be as high as 16 percent.
但对大气中三氟化氮含量的首次测量,最近发表在《地球物理学研究通讯》(Geophysical researchletters),揭示出其排放量可高达16%。
Then it gets rather more high-tech. Capua's high-vacuum, low-temperature equipment removes bergaptene, an irritant, from the oil; and it is then stored under nitrogen gas to stop it oxidising.
后来萃取的方法更加更高科技化了,卡普阿公司的高压低温设备能将刺激物,bergaptene(一种脂)与油分离;然后将香油储存在氮气中防止其氧化。
As a kind of new engineering material, high Nitrogen stainless steel plays more and more important role in industrial production.
作为一种新型工程材料,高氮不锈钢在工业生产中发挥着越来越重要的作用。
This method owns advantages of saving energy, high efficiency, high nitrogen content, steady chemical composition, lower impurity, powerful capacity and lower cost.
此方法具有节能高效、产品含氮高、化学成分稳定、杂质含量低、生产能力大、成本低等优点。
The model plays an important role on the alloy composition design and manufacture of high nitrogen stainless steel.
该模型的建立对于高氮不锈钢的合金设计及制备具有一定的指导意义。
It introduces how to produce high nitrogen ferrochrome in vacuum furnace, non - pressured vessel type.
简述了采用非压力容器型真空电阻炉生产高氮铬铁的过程。
The factors affecting on the infrared extinction performance of smoke agent based on copper powder and high nitrogen energetic compounds(HNEC) were studied.
研究了含高氮含能化合物的铜基红外干扰烟幕剂的配方及影响配方性能的主要因素。
Employed by optical microscope, scanning electron microscope, microhardness tester and X ray diffraction instrument, the isothermal decomposition process of high nitrogen austenite was investigated.
利用光学显微镜、扫描电镜、显微硬度计及X射线衍射仪分析了高氮奥氏体的等温分解过程。
The advantages, technologies and research status of production of high nitrogen stainless steel by powder metallurgy at home and abroad are reviewed.
综述了粉末冶金高氮不锈钢的优点和所采取的主要工艺及国内外研究现状。
In low nitrogen level, the time from nitrogen metabolism to carbon metabolism was shorten; however, in high nitrogen level, the time was deferred.
低氮水平下由氮代谢转化为碳代谢的时间提前,高氮水平下由氮代谢转向碳代谢的时间推后。
The features and problems of manufacturing high nitrogen steels by the electroslag remelting method at normal atmospheric pressure and high pressure have been discussed in detail.
概述了目前高氮钢的主要制备方法,重点讨论了常压和高压电渣重熔高氮钢的特点和存在的问题;
Rapidly available and total nitrogens were consumed respectively in low and high nitrogen soils in maize and soybean mixcropping system.
玉米大豆混作系统在低氮土壤上主要消耗土壤速效氮,在高氮土壤上主要消耗土壤全氮。
The arc slag remelting(ASR) process will be a prospective method of manufacturing high nitrogen steels, which has some obvious technical advantages compared with other methods.
分析了用电弧渣重熔(ASR)法生产高氮钢的技术优势,认为用ASR法生产高氮钢是目前比较可行的方案。
The steels contain more than 0.08 % (mass percent) nitrogen in a ferritic matrix or more than 0.4 % (mass percent) nitrogen with an austenitic matrix were defined as high nitrogen steels.
铁素体基体中氮含量超过0.08%以上(质量分数)或奥氏体基体中氮含量超过0.4%(质量分数)以上的钢称为高氮钢。
High nitrogen steel is widely utilized in many fields because of its comprehensive properties.
由于高氮钢特殊的优异综合性能,使其在许多领域得到了应用。
The measures to prevent nitrogen blow hole caused by high nitrogen content of resin sand are: adopting low nitrogen resin, adding iron oxide into sand or coating and keeping resin from moisture.
防止树脂砂含氮量高引起的氮气孔的方法是:选用低氮树脂、型砂或涂料中加入氧化铁粉和避免树脂受潮。
Nitrogen High protein foods: fish, meat, nuts, beans.
高蛋白食物:鱼,肉,坚果,豆类。
High nitrogen and low nickel stainless steels exhibit attractive properties as high strength and ductility, good corrosion resistance and reduced tendency to grain boundary sensitization.
高氮低镍不锈钢具有良好的强度、延展性及耐腐蚀性能,且可以降低晶界的腐蚀敏感性。
Under the same soil drought status, leaf water potential under high nitrogen level was lower than that under low nitrogen level.
在相同干旱胁迫下,低氮处理的叶水势高于高氮处理的叶水势。
One of the major reason of high nicotine in most samples was the high nitrogen content in soil.
土壤速效氮含量偏高是烟叶烟碱含量偏高和多数烟叶样品糖碱比偏低的一个重要原因。
The formulae of nitrogen solubility in different nitrogen bearing steels are summarized and the key points in high nitrogen steels manufacturing process were pointed out.
概括了氮在钢液中的溶解度公式和高氮钢熔炼过程中的关键问题;
Limited by experiment devices, domestic research of high nitrogen stainless steel lags behind the research in foreign countries.
由于受试验装备的限制,国内高氮不锈钢的研究与国外相比还有差距。
Limited by experiment devices, domestic research of high nitrogen stainless steel lags behind the research in foreign countries.
由于受试验装备的限制,国内高氮不锈钢的研究与国外相比还有差距。
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