查询词典 light velocity

Comparing with the activity of NiO/γ-Al_2O_3, NiO/TiO_2, and NiO/CeO_2catalysts, NiO/CeO_2 showed the highest light-off conversions of NO and CO and lowesttemperature of total conversion. Three kind of CeO_2 prepared by homogeneousprecipitation, precipitation, and direct decomposition method wereused as the carrier of NiO. Through the activity comparison of NiO/CeO_2, NiO/CeO_2and NiO/CeO_2, CeO_2 optimized as the preferable carrier for active component at aspace velocity of 120 000h~(-1, the coversion of NO is 50％at 170℃over NiO/CeO_2catalyst, and the complete conversion of NO and CO occurred at 210℃.

由Al_2O_3、TiO_2、CeO_2负载的NiO催化剂在NO-CO反应中的活性比较得出：NiO／CeO_2催化剂具有最好催化活性；分别采用直接分解法、氨水沉淀法和均匀沉淀法制备了载体CeO_2、CeO_2、CeO_2，并比较了NiO／CeO_2、NiO／CeO_2、NiO／CeO_2的活性差异，得出了以尿素作为沉淀剂的均匀沉淀法制备的CeO_2负载的NiO活性最好空速为120 000 h~(-1的条件下，170℃时，NO的转化率为50％；210℃时，NO和CO的转化率均达到了100％。

The static experiment is done. In this paper, first I introduce some characteristics of the nano-fluids such as motion. The parallel laser is used to illuminate vertically the nano-particle producing dynamic speckle. The Laser speckle velocity is underlain by the fact that movement of a diffuse object illuminated by coherent light results in a random time variation of a speckle pattern observed in both the image plane and the diffraction field.

在描述了纳米流体的基本特点，以及根据布朗运动理论纳米流体的运动特性的基础上，考虑到将采用激光垂直照射纳米流体，由纳米颗粒散射的光线将互相干涉形成散斑的测试方法，从理论上推导了纳米颗粒的运动速度和散斑运动速度的关系，得到了在菲涅尔衍射区域，散斑的移动速度等于纳米粒子的移动速度的结论。

Thus, by overlapping any number of velocities, we can never exceed the velocity of light.

所以，在叠加任何数量的速度时，我们永远不可能超过光速。

When I meet the engine with its train of cars moving off with planetary motion —— or, rather, like a comet, for the beholder knows not if with that velocity and with that direction it will ever revisit this system, since its orbit does not look like a returning curve —— with its steam cloud like a banner streaming behind in golden and silver wreaths, like many a downy cloud which I have seen, high in the heavens, unfolding its masses to the light —— as if this traveling demigod, this cloud-compeller, would ere long take the sunset sky for the livery of his train; when I hear the iron horse make the hills echo with his snort like thunder, shaking the earth with his feet, and breathing fire and smoke from his nostrils（what kind of winged horse or fiery dragon they will put into the new Mythology I don't know）, it seems as if the earth had got a race now worthy to inhabit it.

当我遇见那火车头，带了它的一列车厢，像行星运转似的移动前进，——或者说，像一颗扫帚星，因为既然那轨道不像一个会转回来的曲线，看到它的人也就不知道在这样的速度下，向这个方向驰去的火车，会不会再回到这轨道上来，——水蒸汽像一面旗帜，形成金银色的烟圈飘浮在后面，好像我看到过的高高在天空中的一团团绒毛般的白云，一大块一大块地展开，并放下豪光来，——好像这位旅行着的怪神，吐出了云霞，快要把夕阳映照着的天空作它的列车的号衣；那时我听到铁马吼声如雷，使山谷都响起回声，它的脚步踩得土地震动，它的鼻孔喷着火和黑烟（我不知道在新的神话中，人们会收进怎样的飞马或火龙），看来好像大地终于有了一个配得上住在地球上的新的种族了。

Mm×400mm fiber reinforced composite material armor panel behind the ship's C type steel panel was used to simulate warsh ip's light composite armor, and the ballistic velocity penetration experiments for the different FRC armor panel and the different structural status, such as space certain clearance or no between the two parts, have been done.

采用纤维增强复合材料板前置船体结构钢板模拟舰用轻型复合装甲结构，对有间隙和无间隙复合装甲结构以及不同纤维增强复合材料防弹板进行了打靶实验研究，实验测试了不同纤维增强复合材料防弹板以及有间隙和无间隙复合装甲结构抗弹丸穿甲的吸能量。

For weak intensity, the higher order harmonic forces can be neglected. If the velocity of atoms is near to zero, the light forces will tend to confine the atoms near to nodes and antinodes.

量子纠缠作为多粒子叠加的基本物理问题，在新兴的量子信息领域有着重要的应用前景，其显著的应用就是未知量子态的隐形传送。

However, as photocatalyst TiO_2 has two shortcomings: first it has only a narrow responding width to natural light and then a rapid combination velocity of the stimulated excisions. So it has not high catalytic activities.

TiO_2是最常用的光催化剂，但是由于对自然光响应波长范围窄，光生载流子复合过快而催化活性不高。

A detailed mathematical analysis of fluctuation index of the plane wave and spherical wave in different altitudes, the wind velocity near the earth and the structure constant of atmosphere near the earth were analyzed in light of the ITU-R model.

研究结果表明，斜程传输在弱起伏情况下，利用修正Rytov方法得到的结果与经典Rytov方法结果基本上是一致的。

Be in a company early to establish initial stage, velocity of light is achieved cast already intervened this purpose plans, this company will do business in this summer.

早在公司组建初期，光速创投已介入该项目的筹划，这家公司将在今年夏天营业。

The program provides for the determination of various image acquisition parameters, such as the stage velocity, strobe light power, strobe exposure time, etc., based on a functional limit related to image smear.

基于与图像模糊有关的功能限制，该程序可以确定各种图像采集参数，例如，载物台速度，选通光功率，选通曝光时间等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。