Artificial neural network modelling of concentrations of nitrogen, phosphorus and dissolved oxygen in a non-point source polluted river in Zhejiang Province, southeast….
源自土地填埋的甲烷排放、以及来自焚烧作业的二氧化碳和氮氧化物助长了全球升温。
Emissions of methane from landfill, and emissions of carbon dioxide and nitrous oxide from incineration, contribute to global warming.
控制氮污染没有简单的办法,鉴于农业的多样性,世界各地的气候和政治制度。
There is no easy solution for curbing nitrogen pollution, given the diversity of agricultural, climatic and political systems across the world.
然而,实际的工业气体流中含有杂质,如水蒸气、硫化氢、二氧化硫和氮氧化物。
However, real industrial gas streams contain impurities such as water vapor, hydrogen sulfide, sulfur dioxide and nitrogen oxide.
N是一种不锈钢含有氮,氮是为了提高钢的强度。
N is a kind of stainless steel containing nitrogen, and nitrogen is in order to improve the strength of the steel.
包括测量公差在内的“道路排放值”不得超过氮氧化物实验室限值的2.1倍。
The“road emissions value”, including a measuring tolerance, must not exceed 2.1 times the laboratory limit for nitrogen oxides.
如果这些氮以有机或无机形式施用,则使用的量越多,氮的损失越大。
If these nitrogens are applied in an organic or inorganic form, the more the amount is used, the greater the loss of nitrogen.
用途:必需氨基酸之一,为婴儿正常发育及成人的氮平衡所必需。
An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults.
UN2451将第(2)栏中的名称改为:"三氟化氮";.
UN 2451 Amend the name in column(2) to read:" NITROGEN TRIFLUORIDE";
钢中含铬、锰较多时,可显著提高氮的溶解度,并可利用氮合金化以代替价格较贵的镍。
When the steel contains more chromium and manganese, the solubility of nitrogen is significantly increased, and nitrogen alloying can be used instead of expensive nickel.
基本上,该新方法通过使用由氮原子的核自旋提供了一种二次振荡器解决了这个问题。
Essentially, the new method solves that problem by using a secondary oscillator provided by the nitrogen atom's nuclear spin.
谷氨酰胺含有19%的氮,因而它是氮进入肌肉细胞的首要转运者。
Glutamine by is 19% consists of nitrogen, which makes it the main carrier of nitrogen in muscle cells.
这意味着n型和p型氮化铜半导体可能潜在地取代光伏电池中的有毒或稀有材料。
These n-type and p-type copper nitride semiconductors could potentially replace the conventional toxic or rare materials in photovoltaic cells.
气候变化、生物多样性的丧失、氮循环受阻:这只是迫在眉睫的全球性问题中几个而已。
Climate change, biodiversity loss, disruption of the nitrogen cycle: these are a few of the looming global problems.
固化过程启动氮循环,通常可以使1达到4周,具体取决于岩石的类型和使用的固化方法。
The curing process initiates the nitrogen cycle and typically can take 1 to 4 weeks depending on the type of rock and method of curing used.
然而,关于氮掺杂对Cu2O的影响目前仍存在争议,尚未对其有全面的认识。
However, there is still some controversy regarding the effects of nitrogen doping on Cu2O, and no comprehensive understanding has yet been reached.
氮的含量或燃料量对燃烧过程中产生的氮氧化物量只有轻微的影响。
The nitrogen content or the amount of fuel has only a slight influence on the amount of nitrogen oxides generated during combustion.
该指数可用样品在氮、氧混合气体中保持烛状燃烧所需氧气的最小体积百分数来表示。
The index can be expressed as the minimum volume percent of oxygen required to maintain a candle-like combustion in a nitrogen and oxygen mixture.
亚硝酸盐是氮(N)循环的中间产物,产生于氨与水氧化的过程中,甚至直笨产生于工业废水。
Nitrites are an intermediate product in the nitrogen cycle and are produced by ammonia oxidation with water, or even originate in industrial waste directly.
含氮环氧乙烷在50℃时最高总压力为1百万帕(10巴).
Ethyl chloride Ethylene oxide with nitrogen up to a total pressure of 1MPa(10 bar) at 50 °C.
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