查询词典 spontaneous emission

Based on granular hydrodynamics,Eggers deduced a simplified flux model which has been successfully used in describing the spontaneous symmetry breaking of granular gas in the compartmentalized system,but so far has not been able to predict the oscillation phenomenon of bidisperse granular gas.

Eggers以颗粒气体动力学为基础得出了简化的理论模型。该模型可以很好地得到分仓中颗粒的布居分聚现象，然而似乎无法用于预测两种颗粒在分仓体系中的布居振荡现象。

Helicobacter pylori infection causes the defect of mismatch repair in eucaryotes, and microsatellite instability in gastric epithelial cells, which increases the spontaneous mutation of relative genes, and finally results in the susceptibility to tumors in human bodies.

H pylori 感染导致了真核细胞错配修复(mismatch repair， MMR)系统的缺陷，在胃上皮细胞中引起微卫星不稳定(micrsatellite instable， MSI)，使相关基因自发突变率增加，最终可导致机体对肿瘤的易感。

Spontaneous response to Maoist exactions[4], Salwa Judum is n ow—and many say always has been—an

切。人们把&萨尔瓦－朱杜姆&说成是一个回应毛派分子强硬行为的自发组织，它现已成为——而且许多

The results show that glass ceramics with thermal expansion coefficient of 5.11×10^(-6)℃, major phase of α-cordierite and ε=5.5, tan σ=2.1×10^(-4) can be prepared by the addition of 3.6% alkalis (Li2O+Na2O), and Li2O occupies 1.8%. With Li2O substitution for Na2O, spontaneous crystallization is obviously enhanced, and temperature of the first crystallization peak decreases from 950℃ to nearly 900℃, but the crystallization temperature of the second peak was not varied. With the increase of Li2O content, mixed alkali effect can be observed from the thermal expansion coefficient and dielectric loss curve which decreases first and then increases. Dielectric constant decreases monotonously with the increase of Li2O content.

研究结果表明：Li2O和Na2O总含量为3.6%，其中Li2O含量为1.8%时，微晶玻璃以α-堇青石为主晶相，热膨胀系数为5.11×10^(-6)℃，微波频率下介电常数ε为5.5，介电损耗tanσ为2.1×10^(-4)；随着Li对Na的取代，玻璃的析晶能力增强，初始析晶峰温度从950℃降至900℃左右，但没有降低第二析晶峰温度；随着Li2O含量增加，热膨胀系数及介电损耗都出现明显的混合碱效应，曲线呈现先降低后升高的变化趋势；样品的介电常数随Li2O含量增加单调降低。

The results show that glass ceramics with thermal expansion coefficient of 5.11×106 ℃, major phase of α-cordierite and εr=5.5, tan σ=2.1×104 can be prepared by the addition of 3.6% alkalis(Li2O+Na2O), and Li2O occupies 1.8%. With Li2O substitution for Na2O, spontaneous crystallization is obviously enhanced, and temperature of the first crystallization peak decreases from 950 ℃ to nearly 900 ℃, but the crystallization temperature of the second peak was not varied. With the increase of Li2O content, mixed alkali effect can be observed from the thermal expansion coefficient and dielectric loss curve which decreases first and then increases. Dielectric constant decreases monotonously with the increase of Li2O content.

研究结果表明：Li2O和Na2O总含量为3.6%，其中Li2O含量为1.8%时，微晶玻璃以α-堇青石为主晶相，热膨胀系数为5.11×106 ℃，微波频率下介电常数ε r为5.5，介电损耗tan σ为2.1×104；随着Li+对Na+的取代，玻璃的析晶能力增强，初始析晶峰温度从950 ℃降至900 ℃左右，但没有降低第二析晶峰温度；随着Li2O含量增加，热膨胀系数及介电损耗都出现明显的混合碱效应，曲线呈现先降低后升高的变化趋势；样品的介电常数随Li2O含量增加单调降低。

To investigate the etiology,pathological characteristic and therapeutic effect of spontaneous rupture of the finger extensors.

探讨自发性伸指肌腱断裂的病因，病理特点和治疗效果。

Then and there religious worship of Moon Goddess,Bull and Sacred fire was already in existence,and the worship of Sacred Fire led to Zoroastrianism which appeared in the late 2,000 B C Religious rites are believed to be and ancient spontaneous religious form.which originated from the customs of Hun...

研究中亚的祭祀建筑、丧葬形式、崇拜仪式，有助于我们了解当时人们的生活方式和宗教文化、风俗习惯及礼仪等方面的情况，弄清后来宗教体系的源泉

U-235 has the spontaneous fission rate of 0.2 - 0.3 fissions/s-kg and it is loer than Plutonium.

铀235的自发裂变率0.2-0.3裂变/秒公斤钚是loer比。

Binding energies, a decays, spontaneous fissions, shell structures and deformations are discussed.

用Skyrme-Hartree-Fock+BCS方法计算了超重核的基态性质，讨论了结合能、α衰变、形变、壳结构和自发裂变等问题。

For coal-fired boilers: coal rate of 8 ~ 20%; clear coking coal-fired system 50 ~ 95%; to reduce sulfur emissions 20 ~ 30%; to reduce harmful gas emissions 50 to 95 percent; firepower improve about 20%; lower value of about 14% of spontaneous combustion, and life brought about by the extension of the boiler to reduce the repair cycle of the furnace, flue, heating surface, such as equipment maintenance Qing Jiao role in enhancing the stability of combustion, reducing harmful gas emissions and other benefits.

对于燃煤锅炉：节煤率为8～20％；清除燃煤系统结焦50～95％；降低硫排放20～30％；降低有害气体排放50～95％；火力提高20％左右；降低自燃值14％左右，并带来延长锅炉使用寿命，减少维修周期，对炉膛、烟道、受热面等设备具有清焦保养作用，提高燃烧的稳定性，减少有害气体的排放等效益。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？