XPS data reveal that the state and the content of nitrogen element in the surface layers correlate fairly with the catalytic activity.
XPS实验结果证明活性炭表面氮元素的电子结构及含量对催化氧化活性有显著的影响。
The principles of assimilation and accumulation of nitrogen element based on different fertilization levels and planting densities was researched.
研究了不同密度和施肥水平下的水稻氮素吸收和积累的规律。
During the combustion process of coal, the nitrogen element in coal may turn to various oxides of nitrogen, thereby, resulting in ambient pollution.
煤中氮元素在煤燃烧过程中会转化为各种氮的氧化物，从而造成环境污染。
The experimental result also shows that the nitrogen element on the surface of contact black surface may be mainly in forms of amino group and nitro group.
此外，实验分析了接触法炭黑表面氮元素的组成，结果表明主要是以氨基和硝基的形式存在。
The alloy steels are named High nitrogen steels (HNS) if the nitrogen element percent in the ferrites is above 0.08%or the nitrogen percent is more than 0.4%in the austenite.
在合金钢中，如果铁素体中含有0.08%以上的氮元素或者奥氏体中含有0.4%以上的氮元素，则这种钢就称为高氮合金钢(HNS)。
Nitrogen is an unstable element.
氮是一种不稳定的元素。
Which element is shown here? Yeah, nitrogen.
这显示的是哪个元素？对，是氮。
When a nitrogen atom sits next to a vacant spot in the carbon crystal, the intruding element provides an extra electron that moves into the hole.
当氮原子与碳晶体中的空心点相邻时，氮元素会产生特定的电子，这些电子可以移动到那个空心点里。
Nitrogen is the most common element in the atmosphere and is harmless.
氮是最常见的元素，它无害。
Sigman explained that by measuring algae's use of nitrogen, he can gauge how much these ancient organisms used another important element - carbon dioxide, or CO2.
Sigman测量海藻所需的氮气量用于解释(他的学说)，他还能精确计量这些古老的植物需要的另外一种重要元素——二氧化碳。
All plants and animals need nitrogen. Nitrogen is a major element in the proteins in our bodies. The atmosphere is mostly nitrogen.
所有动植物都需要氮。氮是人类身体中蛋白质的主要组成部分。大气中也主要是氮气。
Nitrogen, the crucial element for the survival of the biology, only can be utilized by the propagation in the compound form instead of molecular form.
氮是生物生存所必需的重要元素，生物中的动植物只能利用化合态氮而不能利用分子态氮。
The effect of Re element addition on the nitrogen content in the weld was insignificant due to the oxidization from the early deoxidization stage.
而由于稀土元素在先期脱氧中大量氧化，其脱氮效果较弱，稀土元素对熔敷金属的总含氮量的影响不显著。
Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
烟草是中国一种重要的经济作物，而氮是植物必需的矿质养分，研究烟草碳氮代谢规律，对指导烟草的生产具有重要的作用。
Ring compounds in which one or more of the carbon atoms in the ring are replaced by an atom of another element such as nitrogen, sulfur or oxygen.
为环状构造的化合物，环中一个或多个碳原子被另一元素的一个原子（诸如氮、硫、或氧）所取代。
The element nitrogen and sulfur in waste tyres are major precursors of secondary pollutions.
废轮胎本身含有的硫和氮是热解二次污染物产生的前驱元素。
From microorganism's composition, growth and reproduction and so on it is elaborated that the nitrogen was the essential element to microorganism vital activity.
从微生物的组成、生长及繁殖等方面阐述了氮是微生物生命活动所必需的元素。
Nitrogen is one of the most important nutrients, known as the life element, it has the close relationship with crop yield and quality.
氮是植物最主要营养元素，被称为生命元素，与作物的产量和品质关系极大。
Nitrates are compounds that contain nitrogen, an element essential for life.
硝酸盐中含有氮，而氮是维持生命的必要元素。
Nitrogen: Gaseous chemical element, chemical symbol n, atomic number 7.
氮：气态化学元素，化学符号N，原子序数7。
The predetermined additive element reacts with nitrogen to form a high-resistance part.
预定的添加元素是通过与氮反应形成高电阻部的元素。
Quantitative study on the quantity of nitrogen fertilizer, phosphate fertilizer and potassium fertilizer was conducted through three-element quadric orthogonal whirling combination design.
采用三因素二次正交旋转组合设计对氮、磷、钾肥的用量进行了定量研究。
It also supplies liquid oxygen, liquid nitrogen, acetylene, carbon dioxide, hydrogen, propane, freon, liquid ammonia, and rare element gas.
还兼营液氧、液氮、液氩、乙炔气、二氧化碳、氢气、丙烷气、氟里昂、液氨及其他高纯和稀有气体。
The key period of element absorption was plantlet to visible bud stage. Potassium was more important than Nitrogen and Phosphorus for development of bulb.
植株营养吸收的关键时期为幼苗至现蕾期，鳞茎发育对钾营养的需求大于氮和磷。
Mn is the important element in grasses growth; operate in chlorophyll form, photosynthesis, respiration and nitrogen fixation.
锰是草株生长的重要元素，对叶绿素的形成、光合作用、呼吸和固氮起着重要作用。
The nitrogen in the block Si3N4 can be determined accurately by inert gas fusion thermal conductivity method combined with 5-element bath.
惰气熔融法结合五元浴能够准确测定烧结氮化硅中氮。
The importance of the nitrogen N2 lies in that the nitrogen is a main element of protein type substances.
它的重要性在于它是蛋白质类物质的主要组成成份。
The importance of the nitrogen N2 lies in that the nitrogen is a main element of protein type substances.
它的重要性在于它是蛋白质类物质的主要组成成份。
应用推荐