查询词典 hydrogen

The most effective way to solve these problems is on-board hydrogen generation by liquid fuels with high hydrogen density.

解决这些问题的最有效的方法是选择合适的具有高能量密度的液体燃料催化转化在线产氢。

The hydrogen solubility in Pd follows Sieverts law, and hydrogen diffusion through the bulk of the palladium membrane is the rate determining step. Whereas other gases only permeate through the pinholes or gaps in the Pd layer;the permeation can be quantitatively described as a combination of Knudsen diffusion and viscous flow.

氢气在钯膜中溶解渗透服从Sievert定律，并且氢的渗透扩散过程是速率控制步骤；而其他气体则通过膜中的针孔或裂隙进行扩散，其传质过程为Knudsen扩散和粘性流两种传递方式的综和。

Interconersion between these two forms of energy suggests on-site utilization of hydrogen to generate electricity, with the electrical power grid sering in energy transportation, distribution utilization, and hydrogen regeneration as needed.

以氢气作能源可以缓解空气污染，地球变暖得到控制，环境以可持续发展的方式得到保护。氢气可以和电能偶连起来，为交通运输及发电提供能源。

For the fourth part, we first designed a hydrogen bonding-mediated rigidified polymer. The X-ray crystal analysis of its fragment molecules showed the existence of consecutive intramolecular hydrogen bonds, which forced the backbone to adopt a rigidified planar conformation.

在第四部分工作中，首先我们设计了一种分子内氢键控制构象的聚合物，通过对其氢键骨架的单晶培养和结构解析证实在它们的结构中存在三中心氢键使得它们采取平面刚性的构象。

Reforming unit: recycle hydrogen compressor, reforming hydrogen compressor, feedstock furnace, reboiling furnace of deheptane tower

重整单元：循环氢压缩机、重整氢增压机、重整进料加热炉、脱戊烷塔重沸炉

Effects of hydrogen reduction time, hydrogen content and redox circulation on C O oxidation activities of CuO-CoO/Al2O3 and CuO-Ce2O3/Al2O 3 combustion promotors were investigated.

对 CuO-CoO/Al2O3和 CuO-Ce2O3/Al2O3助燃剂受 H2还原时间、还原 H2 含量，以及多次还原-氧化循环处理后对 CO 氧化活性的影响在实验室进行了研究。

Methods: Copper was determined by catalytic kinetic spectrophotometric method which was based on the copper catalyzing oxidation of brilliant green by potassium chlorate and hydrogen peroxide in potassium hydrogen phthalate-sodium hydrate buffer solution at pH4.20. The absorbance was measured at 624 nm.

在pH4.2的邻苯二甲酸氢钾－氢氧化钠缓冲溶液介质中，利用铜离子催化氯酸钾和过氧化氢氧化灿烂绿的指示反应，通过测量624 nm下吸光度的改变，用催化动力学光度法测定痕量铜。

According to specific character of research object, via much study work, analyzing many cases of non-heat pressure vessel invalid and combining test result in electric power industry .It analyse and summarize the main reason of hydrogen pressure vessel of electric power plant.This essay carry out crazing performance test of hydrogen causing material .

根据研究对象的具体特点，通过大量的调研工作，分析了大量有关非热力压力容器失效的案例，结合电力行业内已有的检验结果，对电站氢气压力容器失效的主要原因进行了分析和总结；进行了氢致材料开裂性能实验。

According to hydrogen pressure vessel and non-heat pressure vessel of power supply corporation in chongqing electric net as research object , applying exoterica analyse and physical chemistry test to hydrogen pressure vessel and non-heat pressure vessel and carrying through the safety performance evaluation and analyse and research of test .

以重庆电网内发供电企业内装置的氢气压力容器及非热力压力容器为研究对象，应用理论分析和物理化学试验相结合的方法，对氢气压力容器及非热力压力容器进行安全性能评估和检验的分析和研究。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap a...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48