查询词典 hydrogen bromide

A really effective hydrophobia catalyst with stability and high activity is the key to hydrogen isotope exchange reaction between hydrogen gas and liquid w...

本研究制备了Pt-SDB和Pt-C-PTFE两类憎水催化剂，催化剂的活性组分均采用铂。

The isotope exchange reaction between hydrogen and water by hydrophobia catalyst is an effective method to separate hydrogen isotope because of its mild operating conditions.

该项技术与商业利益密切相关，各国催化剂的具体制备工艺都是保密的，因此，必须自力更生，制备出适合工程上使用的高效、稳定的憎水催化剂。

The inhibiter is much sensibility on formation water, solid y inanimate matter, power of hydrogen of oil, so power of hydrogen of oil and other element should be controled when the inhibiter is used.

该抑制剂对地层水、固体无机杂质、原油的酸碱性比较敏感，使用时应注意控制原油体系的酸碱度和地层水、固体无机杂质等抑制剂的影响。

Changes of internal pressure, electrical resistance, internal stress and temperature of hydrogen-storage-metal electrodes during hydrogen charging.

解释了实验上发现的电极充氢过程中出现的内气压、电阻、内应力、温度等变化规律。

Ink system of dissolved hydrogen power and intertexture substrate dissolved hydrogen power too.

油不朱编制的凝固氢键辛与编织袋承印物的凝固氢键辛出入太不小。

Molecular configurations in LB films undergo change from keto form to zwitterion assurface pressures increase,companied by intermolecular hydrogen bonds decreaseand intramolecular hydrogen bonds increase.

在LB膜中，随表面压增加，分子间氢键减少，分子内氢键增加，SBC18头基构型在转折区发生醌式→双性离子构型转变。

When surface pressures are lower than the turnover(5～30mN/m),intermolecularhydrogen bonds were formed with keto form and phase transition was higher ca.60℃;most of SBC18 formed intramolecular hydrogen bonds companied withzwitterion form and phase transition was lower ca.48℃ while at surface pressurehigher than the turnover(≥45mN/m),which is caused by the different interchaininteraction arising from various hydrogen bonds for SBC18 LB film deposited atdifferent surface pressures.

低于相应π-A等温线转折(5～30mN/m)时，以分子间氢键为主，头基主要以醌式构型存在，相变温度较高(≈60℃)；高于转折(≥40mN/m)时，以分子内氢键为主，头基主要以双性离子构型存在，相变温度较低(≈48℃)。

The catalysts were prepared by impregnation and precipitation method, and the active carbon,γ-Al2O3, silica and kieselguhr were selected as the carriers of catalyst. the effects of reaction conditions, such as reaction temperature, types of solvents, and types of hydrogen donors were investigated, It was found that the Pd/C catalyst was the best one, and its proper reaction conditions were also obtained as follow: sodium formate as hydrogen donor, water as solvent, reaction temperature of 70℃ and reaction time of 2.5h.

以活性炭、γ-Al2O3、硅胶和硅藻土等为载体，分别采用浸渍法和沉淀法制备了催化剂，对于反应温度、溶剂及氢供体的种类等反应条件的影响进行了研究，发现以沉淀法制备的Pd/C催化剂是对转移加氢最有效的催化剂，初步确定了适宜的反应条件为以甲酸钠作氢供体、水作溶剂及70℃反应2.5h等。

The favorable regions for DNA cleavage were observed to be pH 3.6-5.6 and pH 9.0-10, suggesting that the species responsible for DNA cleavage are different in different pH regionsOur results do not support a widely accepted conclusion that the copper-bound or free hydroxyl radicals provided by CuZnSOD with its end product hydrogen peroxide lead to release of copper from its host, the Fenton reaction between the free copper and the hydrogen peroxide being responsible for the aberrant copper-mediated oxidation chemistry in CuZnSOD.

目前广泛接受的一个推测机理是CuZnSOD与H_2O_2反应生成羟自由基损伤酶自身导致Cu释放，而释放出的游离Cu进一步与H_2O_2发生Fenton反应导致了异常催化氧化反应的发生。

Flying isn't human dream, material and material are absolutely contact, and stone, contain CaCO3,... By analogy, you say that all matter, they contain more than the matter, small quarks also can find this matter, if the antimatter, like lodestone, then the humanity will use it to fly in the sky, there is the hydrogen plate, sheet metal plates of hydrogen is close to zero and even, quality, less than zero, the density of titanium and not hypothesis, maybe one day will be achieved.

人类飞天并不是梦想，物质与物质间都存在着绝对的联络，人和石头有联系，都含有CaCO3，……以此类推，你可以说到的全部物质都有联系，它们都含有比夸克还小的物质，如果能找出这种物质的反物质，就像吸铁石一样，那么人类一定会利用它飞上天空，还有就是氢板，氢板是类金属板，质量接近于0甚至小于0，密度大于钛，这并不是假说，可能以后的某一天会实现的。

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