查询词典 low-level

The influences of the shock thickness and Alfven waves on the particle acceleration by diffusive shock waves are numerically studied through solving one-dimensional diffusive equation including the second-order Fermi effect. It is shown that the spectral index of the energetic particles strongly depends on the shock thickness. For example, the spectral index increases from 2.1 to 3.7 in the low energy range of 3-10 MeV and from 2.5 to 5.0 in the high energy range of 20-60 MeV as the thickness increases. The spectral index decreases from 4.3 to 3.1 as the particle injection energy increases. The spectral index decreases from 4.0 to 1.8 at the quasi-steady stage with the enhancement of the compression ratio from 2 to 4. The results indicate that under the influence of Alfven waves, the energetic particle spectrum at lower energy becomes flat and the spectral index decreases from 2.5 to 0.6 in the low energy range of 3-10 MeV and from 11.6 to 5.0 in the high energy range of 20-60 MeV. At the same time, the rollover energy reaches 19.6 MeV. The spectral index decreases from 5.8 to 2.9 as the energy density of Alfven waves increase. All these results are basically consistent with the theoretical models, as well as the observations of typical energetic particle events.

通过数值求解包含二阶费米加速的一维扩散方程，探讨在准平行激波条件下激波厚度和级联阿尔芬波对粒子加速的影响，研究粒子分布函数的演化与激波厚度和阿尔芬波强度的内禀关系，计算结果表明：(1)考虑激波厚度时，谱指数明显依赖于激波厚度，随着厚度从0.32增大到2.56，低能端(3-10MeV)谱指数逐渐从2.1增加到3.7，高能端(20-60MeV)谱指数从2.4增大到5.0，能谱逐渐变软；当初始注入粒子动量增大1.3倍，质子能谱指数从4.3减小到3.1，且与零厚度激波加速的谱指数差值缩小；厚度不变时，随着压缩比从2增加到4，准稳态分布时低能端(3-10MeV)粒子能谱指数逐渐从4.0减小到1.8谱变硬；(2)在级联阿尔芬波的影响下，随着时间的增大，粒子在低能处(3-10MeV)的谱指数从2.5减小到0.6高能端(20-60MeV)谱指数从11.6减小到5.0，能谱变硬，拐点能量值从7.5MeV增大到为19.6MeV；随着波的能量密度增大，谱指数从5.8减小到2.9，这表明阿尔芬波强度越大，加速效率越高，通过与激波厚度解析结果和高能粒子事件的观测能谱比较发现两者是一致的，说明数值模拟结果是可靠的。

Although the engine has a high energy conversion efficiency, it unfortunately has low specific power in that it is quite large for the power produced and this limits its range of uses to low power applications.

虽然发动机具有较高的能量转换效率，但不幸在该特定低功率是相当大的权力，这限制了其生产的各种用途，以低功率应用。

Other features include birth weight, growth and growth retardation, mental retardation, small head, round face, low ears, eyes from too broad, muscle tight low-end, on epicanthus, palm, and so on.

其它特点还包括出生时体重轻、生长及发育迟缓、智能不足、小头、圆脸、低位耳、眼距过宽、肌肉紧结性低、上眦赘皮、断掌等。

Methods 80 cases over 76 years old with dated epigastrium surgical operation,were enrolled in this randomized and enlarged control trial,and were divided into 3 groups,A,B and C:A,15 cases enrolled,with continuous epidural block group;B,25 cases enrolled,with combination general anaesthesia of intravenous and inhalation;C,40 patients enrolled,with low-dose and low-concentration epidural anesthesia com...

方法采用随机加大对照方法，选择80例76岁以上择期手术患者分为3组：A组15例为连续硬膜外阻滞麻醉组；B组25例为静吸复合全身麻醉组；C组40例为小剂量低浓度硬膜外阻滞复合静吸全身麻醉组。

My company professional develop natal LED series illumination product adopt high-test LED chip and pc kuan timber, Resistance to impact, resist ageing, prevent ultraviolet, age long, conserve energy, color and lustre beautiful, performance equability, low loss, low maintain, is new generation green the illumination of environmen tal protection product.

我公司专业研发生产的LED系列灯饰产品采用优质的LED芯片及PC管材，抗冲击、抗老化、防紫外线、寿命长、节能、色泽鲜艳、性能稳定、低损耗、低维护，是新一代绿色环保的灯饰产品。

Researches on the earth's land surface processes and the geological environment essential factor and its dynamic mechanism have demonstrated that only with the equilibrant system of the low-temperature and low-stress and the scattered as well as dense multi-grains, the boundary condition for the slow, long-term and intermittent pulsation action can meet the formation conditions of such a rock deformation structure.

通过物理模型分析和试验变形比对等综合材料证明，变形砾石是遭受了既密集、又分散、还具有同时发生作用的长时期的多边界外力条件及平衡力系，内部形成破裂其应力传递过程和性质改变与变形形迹转变及其做功连续扩展，是由低于疲劳极限的具有脉动性作用微弱应力造成的。

At same time, effects of temperature on organic contaminant creating in pore water and the equilibrium concentration were also significant, and at low temperature, the equilibrium concentration is low.

同时，环境温度显著影响底泥间隙水有机污染物的平衡，在温度较低时，间隙水有机污染物所能达到的平衡浓度较低，达到平衡所需时间较长。

F temperature on organic contaminant creating in pore water and the equilibrium concentration were also significant, and at low temperature, the equilibrium concentration is low.

同时，环境温度显著影响底泥间隙水有机污染物的平衡，在温度较低时，间隙水有机污染物所能达到的平衡浓度较低，达到平衡所需时间较长。

In obtains domestically produced LHRH-a to unite the low dosage alkyne promise alkone to be possible effectively to treat different sickness, and can reduce the low estrin symptom, reduces the hemorrhage rate, slows down the bone to transform.

得出国产LHRH-a联合低剂量炔诺酮可有效治疗内异症，并能减轻低雌激素症状，降低出血率，减缓骨转换。

They cationic monomer Acryloyloxyethyl ethyl trimethyl ammonium chloride and resource-rich, low price, low values of weathering burning coal as its main raw material, aqueous dispersion polymerization methods, through the weathered coal / cationic monomer in-situ polymerization in the international arena for the first time prepared by a high efficiency oil-bearing wastewater treatment agent; use of oil-field wastewater treatment, the waste slurry as raw material, has developed the world's first CWS dispersants and oil fields of the "three mining" using profile control plugging agent, in order to The high value of solid waste has opened up new avenues of applications; integration of related technologies, and open up for the oil field wastewater treatment, an annual output of 300 tons of sets of processes and devices for the first time realized the slop oil and drilling fluid back row of the industrialization of treatment .

他们以阳离子单体丙烯酰氧乙基三甲基氯化铵与资源丰富、价格低廉、燃烧值低的风化煤为主要原料，采用水介质分散聚合方法，通过风化煤/阳离子单体原位聚合技术，在国际上首次制备出高效含油废水处理剂；采用油田废水处理后的废弃物泥浆为原料，在国际上率先开发出水煤浆分散剂和油田"三采"用调剖堵水剂，为固体废弃物的高值化应用开辟了新途径；集成相关技术，开拓出针对油田废水处理、年产300吨的成套工艺和装置，首次实现了油田污油水和钻井返排液的工业化处理。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。