查询词典 Ammonia

High percentages of ammonia or hydrogen sulfide are oxidized on the first half of the column. The oxidation of high amounts of hydrogen sulfide would involve some environmental stress on nitrifying bacterial growth and activity.2002 Elsevier Science Ltd. All rights reserved.

高百分比的氨或硫化氢在第有个柱的一半上被氧化，大量的硫化氢的氧化作用会使硝化细菌的繁殖和活性更加适应环境的压力。

Of Chu of department of phlegmy grave of evade of Cang Longbao ammonia of head of frequency of Gua of Bao Ao of brighting cut up with a hay cutter of grandma of bag of a square-shaped fishing net with pole as supports and the picture with beautiful artistic conception, add harmonious music, the student cannot refrain from plaint, much more beautiful night!

如教学《少年闰土》一文，先出示：月下海边瓜地&深蓝的天空&&金黄的圆月&&碧绿的瓜地&，色彩美和意境美的画面，加上和谐的音乐，学生不由自主的感叹，多美的夜晚啊！

The photoionization dynamics of ammonia and benzene was studied by home-built femtosecond laser and TOF mass/photoelectron spectrometer.

报导了用自制飞秒激光器通过飞秒多光子电离质谱和光电子能谱对飞秒强激光场与分子相互作用的研究。

Nitrate (NO3--N) showed a single hump-shaped curve with soil depth increased, but ammonia (NH4+-N) showed a parabola curve, with lowest value found in 20-40 cm soil layer and highest value in 0-20 cm and 40-60 cm soil layer.

油松林土壤全氮和有机质含量垂直变化趋势相似，随土壤深度的增加而降低；硝态氮(NO3--N)均随土壤深度的增加呈单峰曲线变化趋势，而铵态氮(NH4+-N)随土壤深度增加呈先降低后增加的抛物线趋势。

Under the catalysis of ammonia, tetraethoxysilane hydrolysed and polymerized to form the silica nanoparticles.

将环己烷、正己醇和表面活性剂Triton X-100按一定体积比(12.3∶1.04∶1)混合均匀，形成清澈透明的溶液；将适量的四羧基铝酞菁溶解到浓氨水中，加入到上述混合溶液中，形成反向胶束。

Bases include oxides and hydroxides of metals and ammonia.

碱包含金属和氨的氧化物和氢氧化物。

Moreover, MeJA induced defense genes, such as pathogenesis-related proteins (PR2a), phenylalanine ammonia-lyase, BX9, and TPS. MeJA also increased DIMBOA and Vannillic acid content of leaves and roots significantly but leaf p－Hydroxybenzoic acid concentration was decreased significantly and Protocatechuric acid was produced in roots only.

1MeJA叶片处理能诱导叶片和根系中丙二烯氧化物环化酶基因、糖基转移酶（BX9）基因、苯丙氨酸转氨酶基因的表达，使叶片和根系中丁布含量升高，同时，6μL/L MeJA处理使第二叶中原儿茶酸含量显著降低，诱导根中产生原儿茶酸，使第二叶中香草酸含量和根中未知物质峰面积显著增大。

Fe2O3/SO(superscript 2- subscript 4) solid super acid was obtained by dissolving iron nitrate in ammonia, dipping the resultant iron hydroxide in sulfuric acid, filtration and calcination.

硝酸铁溶于氨水得到Fe3后再用硫酸浸泡，经过滤、焙烧制得固体超强酸催化剂Fe2O3/SO(上标 2-下标 4)。

The liquid was then collected from public latrines, where it served as the valuable raw material for a number of chemical processes: it was used in tanning, and also by launderers as a source of ammonia to clean and whiten woollen togas.

随后公共厕所中的液体被收集起来，作为珍贵的原料用于一系列化学生产过程中：它被用于制革，洗衣工人也将其作为清洁和美白羊毛制服。

The design adopt concentrated ammonia water purification recycling craft. The choice and calculations of the main construction and equipment are made, and also the flow chart, graphic layout plane, the main equipment single unit chart.

设计中采用生产浓氨水的煤气净化回收工艺流程，对煤气净化处理的主要构筑物及设备等进行了选型和计算，绘制了煤气净化回收工艺流程图、平面布置图、主要设备单件图等。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。