螺旋

The average field idea and the single particle model have been introduced, and the motion behaviours in large scale of beam particles have been disscussed for 2 Dimension crystallization beams in storage rings.

利用平均场概念和单粒子模型讨论了储存环中二维晶化束的大尺度运动行为，结果再现了粒子轨道的螺旋运动特征，并用天体物理学方法揭示了螺旋轨道不断进动的新运动形

Large-scale machinery Series - grille decontamination machine, non-axis spiral sand water separator, non-axial screw conveyor, screw press machine, conveyor belt, filter press, filter, etc..

大型机械系列——格栅除污机、无轴螺旋式砂水分离器、无轴螺旋输送机、螺旋压榨机、皮带输送机、压滤机、过滤器等。

The features include a reusable leg-plate adapter cable that is easier to clean, a new spiral electrode with a release mechanism that is easier for clinicians to use, and a spiral tip that is secured within the insertion tube for increased safety.

新特征包括可重复使用的更加易于清洁的leg-plate适配器电缆，新型螺旋电极具有释放机制方便临床医生操作，螺旋尖头包裹在插入式试管中从而提高了安全性。

The result showed that the strong storm followed by mesoscale squall line was primary cause of strong sandstorm producing, steps and ladders short wave trough of 500 hPa was great criterion triggering system for the mesoscale squall line producing, the essential dynamic condition was provided by distortion field and the mesoscale low pressure of 700 hPa for the strong sandstorm forming and maintaining in mid-west of Hexi Corridor, the deep vertical circulation development condition was basic power that urged squall line to occur and sand dust to curl up, which was provided for the deep convection development by superimposition of lifting movement before ground cold front and ascendant current of secondary circulation in upper air jet entrance region, temperature and the barometric gradient around the cold front was enlarged by enhancement of ground thermal low and temperature diurnalvariation of afternoon, by which essential thermal energy unstable condition was provided for the gale and strong sandstorm eruption, the strong sandstorm appeared in downstream of -200 m^2s^(-2) center of vertical helicity, the vertical helicity had good instruction significance for development of squall line and landing region of sandstorm, the mesoscale squall line occurred in unstable stratification, basic condition of potential energy transforming as kinetic energy was provided by strong unstable stratification for the strong sandstorm forming and developing.

结果表明：中尺度飑线所伴随的强风暴是产生强沙尘暴的主要原因；500 hPa阶梯短波槽是中尺度飑线产生的大尺度触发系统，河西走廊中西部700 hp变形场、中尺度低压为强沙尘暴形成和维持提供了必要的动力条件；地面冷锋前上升运动与高空急流入口区次级环流的上升气流的叠加，为深对流发展提供了深厚的垂直环流发展条件，是促使飑线发生和沙尘卷起的基本动力；地面热低压的加强和午后气温的日变化加大了冷锋前后的温度和气压梯度，为大风、强沙尘暴爆发提供了必要的热力不稳定条件；强沙尘暴出现在垂直螺旋度为－200平方公尺/s^2中心的下游，垂直螺旋度对飑线的发展和沙尘暴的落区具有较好的指示意义；中尺度飑线发生在不稳定层结内，较强的不稳定层结为强沙尘暴形成、发展提供了位能转化为动能的基本条件。

The results show that the beam-wave efficiency is not sensitive to the velocity spread, but is dependent on the period and depth of the helical corrugations, and that the efficiency in the present experiment may achieve 25.6% by optimizing the helical corrugation parameters.

结果表明：螺旋波纹壁圆柱波导回旋行波放大器效率对电子束速度离散不敏感，而对螺旋波纹开槽周期和开槽深度的依赖性较强；通过参数优化可望把目前实验的效率水平提高到25.6%。

The companies have been the premier providers of mechanical binding services in their respective regions, offering Wire-O, plastic spiral, spiral wire, plastic comb binding and perfect binding services.

该公司一直在首要供应商的机械装订服务在各自区域，提供线啊，塑料螺旋，螺旋线，塑料梳子约束力和完善有约束力的服务。

Histologically, temporary edema was found throughout the organ of Corti 3 days after 3-NP administration.

暴露后12 h，螺旋神经节细胞胞浆和胞核内有空泡形成，第7天螺旋神经节细胞变性。

Results The HSP27 had been stained in the cochlea, especially in the organ of Corti, spiral ganglion, stria vascularis, and spiral ligament.

结果 HSP27在正常及水杨酸钠作用后大鼠耳蜗各回均有不同程度的染色，主要阳性部位是Corti器、螺旋神经节、螺旋韧带和血管纹。

Two different competition mechanisms were observed, which are related to the ordered waves obtained from different local inhomogeneities.

此外，实验还发现靶波与反螺旋波之间以及行波与反螺旋波之间存在着不同的动态竞争。

Hes5 gene, a key downstream mediators of Notch signaling that functions by inhibiting the expression or activity of positively acting bHLH factors, is a member of bHLH transcription factor family which acts as a positive-negative transcriptional regulators which is expressed transiently in different stages in cells growth and differentiation and orchestrate those precisely timed and progressive maturational events underlying cell fate decisions according to orders of time and spatial and coordinated the function of majority of signaling transduction on target genes to influence the proliferation and differentiation.

Hes5是Notch通路转导途径的一个关键的下游信号分子，通过抑制正调控bHLH因子的表达和活性来发挥作用，隶属于碱性螺旋-环区-螺旋转录因子家族。该家族形成一个正负转录调节器，按时空顺序短暂表达于细胞发育分化的不同阶段，介导和协调多种信号系统对大量靶基因的作用，影响细胞增殖、分化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。