查询词典 CE

The analyses of environmental indexes of the sediment from a 5.3m core, CE-2 core, taken from Co Ngoin lake, reveals the process of climate change in the central Tibetan Plateau during 12~4kaBP, shown as cold and wet period (before 11.2kaBP)→Allerod period (11.2～10.9kaBP)→Younger Dryas (10.9～10.5kaBP)→warm and wet period (Holocene, after 10.5kaBP).

通过CE-2孔5.3m湖泊沉积物高分辨率多指标综合研究，获得了高原中部12kaBP以来详细的气候环境演化过程：11.2kaBP前的冷湿阶段-阿勒罗德期(11.2～10.9kaBP)-新仙女木期(10.9～10.5kaBP)-全新世暖湿期(10.5kaBP后)。

An EPMA was performed quantitatively on the influence of Ce upon the Mn segregation in cellcrystals, columnar and Equiaxial dendrites of high-Mn steel.

与此同时，用电子探针微区分析考察了Ce对高锰钢中Mn在胞晶、柱状树枝晶及等轴晶内偏析的定量影响。

The results show that under the follow conditions: pyrolysis temperature 270癈,active carbon and: ethyne black=9:l, carbon pretreated with HNOs, 7.18% Mn(NO3)2(vs. carbon support) catalyst can exhibit the best performance. In order to improve the electrocatalystic performance of MnO2, Pb(CH3COO)2 , La(NO3)3-6H2O and Ce(NO3)3-6H2O are chosen as additives of MnCVC air electrode . Electrochemical performance of the electrodes is studied by current-potential polarization curves.

为了提高催化剂的性能，选择了醋酸铅、稀土作为添加剂，采用稳态极化和交流阻抗测试方法，结果表明：铅的氧化物、稀土La和Ce可作为MnO_2催化剂的助剂来促进氧气还原反应的进行，醋酸铅添加7.5％时极化最小，在一般金属-空气电池的工作电流密度20～50mA／cm~(-2)下，电位比单独MnO_2催化剂可提升30～50mV。

Two reasons can be explained the improvements of catalytic activities after the addition of Ce. One is the increase of the thermal stability of Ni-B and Ni-P nanoamorphous alloys, which retards the nanocrystalline Ni to aggregate during the exothermal reaction of benzene hydrogenation. The other is to make their grain sizes smaller, thus it increases the number of activity center in unit mass.

说明加入Ce提高催化活性的主要作用有两方面，一是提高Ni-B和Ni-P纳米非晶态合金的热稳定性，抑制催化苯加氢反应时大量放热促使纳米晶Ni的聚集长大；二是使生成的Ni-B和Ni-P纳米非晶态合金颗粒更为细小，从而增加单位质量样品的活性中心数量。

Objective:To assess the value of high-resolution 3D contrast-enhanced MR angiography(3D CE MRA)in the diagnosis of renal artery fibromuscular dysplaisa.

目的：评价高分辨力三维增强磁共振血管成像术(3D CE MRA)诊断肾动脉纤维肌层发育不良的价值。

HINGER FLOOR - The CE Floor is hinged allowing it to tip up and prevent damaging the CRJ aircraft should it be accidentally lowered on top of the aircraft step.

保护航空器和避免传感器 HINGER 地板- CE 地板取决于允许它打翻和防止损坏CRJ 航空器如果它偶然地被降下在航空器步顶部。

However, the water quality simulation results by CE-QUAL-W2 model revealed that the hydrologically induced density currents in winter together with the external loads of P were the main cause of the surface water quality deterioration, even though the bottom water carrying abundant P internal loads might be lifted to the middle layer by the water momentum force by the density current.

然而以CE-QUAL-W2二维水理水质模式模拟结果，翡翠水库年初表水总磷浓度突增主要是受到冬季冷水密度流造成的水体抬升及前一年停留在中层水之磷外部负荷联合贡献结果，相对地磷内部负荷虽可被抬升至中层水处，对表水的贡献有限。

However, the water quality simulation results by CE-QUAL-W2 model revealed that the hydrologically induced density currents in winter together with the external loads of P were the main cause of the surface water quality deterioration, even though the bottom water carrying abundant P internal loads might be lifted to the middle layer by the water momentum force by the density current.

模拟之底泥溶解总磷负荷和溶解总磷外部负荷相当。然而以CE-QUAL-W2二维水理水质模式模拟结果，翡翠水库年初表水总磷浓度突增主要是受到冬季冷水密度流造成的水体抬升及前一年停留在中层水之磷外部负荷联合贡献结果，相对地磷内部负荷虽可被抬升至中层水处，对表水的贡献有限。

To evaluate the biocompatibility in vivo of Mg alloy AZ91D(AZ0),Mg-Mn-Ce (RE0) and their step anodizational materials (AZ1, AZ2, AZ3, RE1, RE2,RE3) by the experiments of intradermal stimulus and sensitivity response. According toGB/T 16886.10-1997 Biological Evaluation of Medical Apparatus and Instrument, compared with normal sodium, pure magnesium and medical Ti-6Al-7Nb, the leaching liquor were injected into cutis to evaluate stimulus response,to evaluate sensitivity response by injection and illinition.

通过动物皮内刺激及致敏试验，对镁合金AZ91D(AZ0)、Mg-Mn-Ce(RE0)及其在三种不同阶跃式阳极氧化表面改性条件下所得新型镁合金(AZ1、AZ2、AZ3、RE1、RE2、RE3)的体内生物相容性进行初步的评价。

The paper take the Ce (SO4)2/PAn as catalyst and cyclohexanone, 1,2-propylene glycol as raw materialr to synthesize cyclohexanonel 1,2-propylene glycol ketal.

以硫酸高铈[Ce (SO4)2]掺杂聚苯胺为催化剂，环己酮和1，2-丙二醇为原料，催化合成环己酮1，2-丙二醇缩酮。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。