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The deuterium desorption behavior of titanium deuteride with oxide layer on the surface in a constant volume system was investigated in the temperature range of 873 to

测定了3种不同氧化层厚度的氘化钛在873~1073K范围内的热解吸反应速率常数,得到673K下氧化5、2h的氘化钛和未经氧化处理的氘化钛热解吸氘的活化能分别为29。

In chapter 2, concerning the chemistry of many kinds of olefin-coordinated alkoxycarbene iron complexes and their isomerized products previously synthesized by our group, we examined their thermolysis reactions and many novel thermolysis products were isolated.

第二章中,对于我们小组以往合成的各类烯烃配位的铁卡宾络合物及其异构化产物,为了研究其反应性能,我们从热解反应着手,研究了一系列烯烃配位的铁卡宾络合物及其异构化产物的热解反应,获得了一系列新奇的热解产物。

Under the conditions of fast heating, fast cooling and thermal cycling with larger temperature difference, it is concluded that(1)under appropriate strength and toughness, in creasing the vermiculating rate can enhance the thermal fatigue resistance of vermicular graphite iron;(2)increasing the vermiculating rate by a big margin can also enhance...

在快速加热、快速冷却以及较大热循环温差的服役条件下得出:(1)当强韧性相当时,提高蠕化率可提高蠕铁的热疲劳抗力;(2)大幅度提高蠕化率,尽管强韧性有所下降,但亦可提高蠕铁的热疲劳抗力。

With the trend of utility, common customs and manifold, country religion is more and more autochthonous.

认为改革开放以来江浙乡村的&宗教热&具有与此前不同的三大特征:宗教信众的增加主要集中在一些经济极发达地区和一些经济极贫困地区,乡村宗教发展呈现出两极化的趋势;佛教、道教等本土化宗教继续衰落或复兴无力,而天主教和基督教这些非本土的宗教却在农村迅速拓展,呈现为&西教东热&的趋势;宗教信仰功利化、信仰群体多元化乡村教会世俗化,呈现为适应江浙乡村社会现实的本土化趋势。

The thermal stability, Raman spectra, and upconversion luminescence spectra of lead halide-modified Tm~3+/Yb~3+-codoped tellurite glasses have been investigated, and the upconversion luminescence mechanism of Tm~3+/Yb~3+-codoped oxyhalide tellurite glasses were analyzed.

研究了卤化铅调整Tm3+/Yb3+共掺碲酸盐玻璃的热稳定性能、Raman光谱和上转换发光光谱,分析了Tm3+/Yb3+共掺氧卤碲酸盐玻璃的上转换发光机理。结果发现:混合卤化铅调整Tm3+/Yb3+共掺碲酸盐玻璃具有好的热稳定性能、低的声子能量、强的上转换蓝光。这表明混合卤化铅调整Tm3+/Yb3+共掺碲酸盐玻璃是一种上转换蓝光激光器的潜在基质材料

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型,得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例,提出了等效供热量的概念及计算公式,指出实际所需供热量应等于设计供热量加上等效供热量,并以大连为例,给出了等效供热量的修正系数,以新方法计算,阴天可减少设计供热量37%,晴天最大可以减少设计供热量43.3%,节能效果显著;集热蓄热墙式太阳房中,混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显,当室外温度波动最大幅度超过10℃时,室温波幅不超过3℃,实验中300mm厚墙体内外表面温差超过10℃;墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势;墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响,存在一个最佳的墙体厚度值,使得墙体集热和蓄热综合性能最优;传统的蓄热墙夜间没有外保温,辐射散热损失很大,研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能,增加了向室内的供热量。

The Yiarmand gold deposit occurs in hydrothermally eruptive breccia of the 2nd Member of Lower Carboniferous Dahalajunshan Formation and its underlying arsenopyritized and pyritized tuffaceous clastic rocks,and the ore forming process can be divided into hydrothermally eruptive and sedimentary stage and metasomatic stage.

伊尔曼德金矿床赋存于下石炭统大哈拉军山组第二岩性段硅化热液喷发角砾岩及其下伏上泥盆统吐呼拉苏组毒砂黄铁矿化凝灰质碎屑岩中,成矿作用可分为热液喷发沉积期和热液交代蚀变成矿期。

The dolomitizing fluid was a mixture of magmatic hydrothermal, metamorphic hydrothermal, organic acid and regional brine under the ground. The Mg(superscript 2+) for dolomitization came from dissolution of magmatic rock, dehydration of clay mineral in the course of buried compaction.

白云化流体来自岩浆热液、变质热液、有机酸及区域地下热卤水的混合,白云化所需的Mg(上标 2+)来自岩浆岩中铁镁矿物的分解、埋藏压实过程中粘土矿物的脱水作用等。

The GIBS scheme can raises the phase transformation temperature to 850℃ and the agglomeration temperature to 800℃.

而GIBS制程达到晶相转换温度850℃与结块温度800℃的效果,其热稳定性比未做Ge布植的矽化镍与高了100℃,猜测其原因为高浓度的Ge在矽化镍/矽的界面聚集,平衡了在界面上的应力,使得热稳定性提升,除此之外,从TEM图中还可发现Ge离子布植提升了矽化镍的界面平坦度。

Melting point 3410 ℃, boiling point 560 ℃, relative density of 1935, F the external electronic structure of 5d46s2, in the chemical reaction time is very easy to lose 1-6 electronic, but also can get 1-2 electronic, so oxidation number of 0,± 1,± 2, 3, 4 , 5 and 6, with 6 price of the most stable compounds, such as WO3 does not dissolve in water, the air will form in the tungsten trioxide thin protective layer of tungsten, tungsten with fluorine at room temperature, chemical combination, red hot when there is no moisture and Bromine iodide together, red hot when you can and water reaction WO3, at room temperature reaction of tungsten with aqua regia, but the hot concentrated hydrochloric acid and sulfuric acid can only be played with its weak response, but molten nitrate, nitrite, too Hydrogen peroxide, sulfur steam, steam and other phosphorus can play intense reaction, high temperature can not be carbon, boron and silicon reaction of binary compounds, widely used in industrial tungsten steel and tungsten carbide, pure tungsten filament is used to the system, and X-ray tube Tube heating components, semiconductor components can be prepared tungsten silicide, tungsten industrial production is white or black tungsten ore tungsten ore refining.

熔点3410℃,沸点560℃,相对密度1935,F外围电子结构为5d46s2,在化学反应时很容易丢掉1—6个电子,也能得到1—2个电子,所以氧化数为0、±1、±2、+3、+4、+5和+6,以+6价化合物最稳定,如WO3不溶于水,空气中的钨会形成薄层三氧化钨保护层,钨能与氟在室温下化合,红热并无潮气时能与溴、碘化合,红热时还能和水反应生成WO3,室温下钨可与王水反应,但热的浓盐酸和硫酸只能与其起微弱反应,但对熔融的硝酸盐、亚硝酸盐、过氧化氢、硫蒸汽、磷蒸汽等能起激烈反应,高温下不能与碳、硼和硅反应生成二元化合物,工业上广泛使用钨钢和碳化钨,纯钨用来制灯丝、电子管和X射线管的发热元件,硅化钨可制半导体元件,钨工业生产是将白钨矿石或黑钨矿石精炼。

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推荐网络例句

Now, more and more people and volunteers go to disaster area to help people who are in trouble.

现在,越来越多的人们和志愿者到灾区帮助那些处于灾难的人们。

A traveling show; having sideshows and rides and games of skill etc..

一种游动的表演;具有杂耍和骑车和技能游戏。

Monetary policy is usually conducted under the auspices of a country's central bank.

货币政策通常根据一个国家的中央银行的赞助被引导。