英语人>网络例句>磷 相关的搜索结果
网络例句

与 磷 相关的网络例句 [注:此内容来源于网络,仅供参考]

In order to improve the electro-catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified Pt/GC electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. The study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1×10~(-3)mol/L. And find the more heteropoly acid modified on electrode, the lower peak-up potential towards methanol because of the existence of oxygenous species.

为了改善铂基催化剂氧化甲醇的催化活性,本论文首先通过循环伏安扫描法制备了不同浓度钼酸和钨酸修饰的Pt/GC电极,通过研究Pt/GC电极在修饰前后在硫酸溶液中及含甲醇的硫酸溶液中的循环伏安行为发现,钼酸和钨酸均能在PtRu/C电极上发生氧化还原反应,而且杂多酸修饰浓度对Pt/GC电极氧化甲醇的催化活性有很大影响。

The mandarin fish is a piscivorous fish, feeding on other fish species. It is tasty, devoid of fine skeletal spines, and fetches high price. Certain research institutes have tried to stock this fish into lakes with plenty of trash fishes, and the result seems promising.

就水体中氮、的负荷而论,只要输出水体的渔获物中氮、的含量大大超过输入水体的全部&鱼种&的氮、含量加上这些&鱼种&生长代谢过程中所排泄的氮总量,那么这种放养对延缓富营养化的进度还有积极意义

The absorption characteristics of three kinds of wetland plants,including Iris pseudacorus,Pontederia cordata and Scirpus validus,for removing nitrogen and phosphorus from wastewater resembling secondary effluent were studied by lab and pilot tests.

结果表明:短期内,各种湿地植物污水中氮、的吸收速率比较稳定,但在整个生长周期内,各种植物对氮、的吸收速率却有较大变化,4月份,水葱对氮、的吸收速率最大,8月份,梭鱼草对氮、的吸收速率最大。

The results indicate that (1) After acclimation and induction, Phosphorus Accumulating Organism not only has the characteristics of denitrification, but also has the characteristics of takeup phosphate in aerobic;(2) Denitrifying phosphate accumulating bacteria using NO3- as electron acceptor indeed existed in the conventional enhanced biological phosphorus removal system;(3) The facultative anaerobe seperated during the process of acclimation are Corynebacterium, Pseudodiphtheria corynebacterium, Staphylococcus and Moraxella; all of which can be functioned as denitrifying phosphorus accumulating to various degree.

试验结果表明:(1)好氧聚菌经驯化诱导后不但具有反硝化产氮特性,而且具有好氧聚特性;(2)在传统的A2O 工艺中存在有以NO3-为电子受体的反硝化聚菌;(3)在驯化过程中分离到的兼性厌氧微生物有棒状杆菌属、假白喉棒杆菌、葡萄球菌属及莫拉氏菌属,且都有不同程度的反硝化聚功能。

The effect of fertilizer application on the growth and development of summer maize and the absorption, distribution and remobilization of Nitrogen, Phosphorus, and Potassium were investigated in field-grown conditions from 1997 to 1998, as well as the response of photosynthesis to eco-physiological factors in the corn canopy caused by different fertilizer amounts were explored.

4.1.1 对土壤速效养分含量的影响 19-224.1.2 对植物养分含量的影响 22-234.1.3 对产量的影响 23-244.2.1 对土壤速效养分含量的影响 24-254.2.2 对植株养分含量的影响 25-264.3.1 氮素吸收动态 26-274.3.2 素吸收动态 274.3.3 钾素吸收动态 27-284.3.4 氮钾在植株中的分配和转移 28-304.4.1 氮素吸收动态 30-314.4.2 素吸收动态 31-324.4.3 钾素吸收动态 324.4.4 氮钾在植株中的分配和转移 32-34

The contents of different forms of nitrogen and phosphorus in different sites were mainly influenced by terrigenous inputs, sediment grain size and hydro-dynamics.

表层沉积物中总的含量平均值为455.94mg/kg;有机占总含量的39.41%,平均含量为179.69mg/kg;铁结合和铝结合平均含量为94.97mg/kg。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫与无水乙醇在NaOH存在下合成了二乙基硫代酰氯,然后再与对苯二胺反应合成了新型的含、氮、硫的膨胀型阻燃剂:1,4-二(O,O-二乙基硫代酰亚胺基)苯。

We selected wuli lake, seriously polluted lake, and used long-term laboratory sludge-dredging method to compare the difference of dredged zone and undredged zone, we conducted sludge incubated experiment of two depth of dredging to analyze the difference of nutrient''s release. We investigated the budge of phosphorus monthly and monitored the concentration of phosphorus of the water simultaneously, and analysised the change of the content of phosphorus of water body and further studied the effect of sludge-dredging on the content of phosphorus in water body.

本研究以污染严重的太湖五里湖为研究对象,对室内长效模拟和疏浚区/非疏浚区比较,进行了两种不同模拟疏浚深度的底泥培养实验,同时对疏浚后环五里湖河道进行了出入湖量和湖面含量同步调查分析,分析底泥疏浚前后水体含量变化,结合逐月出入湖量的初步分析,研究疏浚对湖水中含量的影响。

Their half lives were 27.29 and 69.16 days respectively. Monocrotophos degraded into both methanol extractable and unextractable residues in the submerged soil.The analysis of 14C-methanol extractable. residue by TLC and ARG indicated that degraded products of monocrotophos were triether phosphate,;N-de-methyl Azodrin, O, O-dimethyl-vinyl-phosphatc,O-demethyl Azodrin,and O, C-demethyl Azodrin.The principal degraded extratable product of monocrotophos was triether phosphate, which incresed from 5% of the parent solution of monocrotophos to a range of 28-83%, furthermore and its degradation process was much faster in the unterilized soil than in the sterilized soil.

久效在淹水土壤中降解为甲醇可抽提态和不可抽提态残留物,对甲醇可抽提态残留物经TLC和红外光谱分析表明,其降解物为酸三酯、N-去甲基久效、O,O-二甲基乙烯基酸酯,0-去甲基久效,以及O,C-去甲基久效,但主要为酸三酯,其含量由母液中的5%增加到28—83%,这种降解过程,在未灭菌土壤中比在灭菌土壤中快。

The capsaicin in the sample was alkalized with NaOH solution and mixed with phosphotungstic acid and phospho-molybdic acid , the blue heteropoly acid salt has characteristic absorption at 660 nm.

对以辣椒碱为单剂和复配剂制成生物农药中辣椒碱总量的测定条件研究结果表明,含有辣椒碱的生物农药试料,辣椒碱在碱性溶液中与钨酸-钼酸作用,生成蓝色的钨酸–钼酸杂多酸盐,在660nm有最大吸收,其吸光度与溶液中辣椒碱的含量成正比。

第10/100页 首页 < ... 6 7 8 9 10 11 12 13 14 ... > 尾页
推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。