| 1. | The second , the biaxial symmetry is apparently induced in the interface molecular layer by the surface fields 其次,界面分子层上将出现明显的双轴对称性。 |
| 2. | The conversion efficiency of 14 % is possible if the al back surface field and the diffusion process are improved L 。若进一步改善铝背场及扩散工艺条件,有望达到14的效率。 |
| 3. | The positive storm - relative helicity center is accompany with low - level jet in 850 - hpa isobaric surface fields 通过分析我们发现了正的相对螺旋度中心与850hpa低空急流的演变过程是一致的。 |
| 4. | However , the accuracy and instantaneity of the most used mark post measurement method are not good and the errors of five - wheel measure device with contacting measurement principle are serious when it is used in soft and undulated surface field 但是,常用的标杆法测量精度和瞬态性较差,接触式测量的五轮仪法用于田间松软、不平的地况误差较大。 |
| 5. | Then we studied the effect of junction uniformity on the aluminum - alloyed back surface field to solar cell performance . the formation theory of aluminum - alloyed back surface field , the effect parameters to the doping concentration and the junction depth were analyzed 比较了两种商业太阳电池的杂质浓度分布及结深情况;叙述了铝背场的作用及形成原理,对影响铝背场表面浓度和结深的参数作了分析。 |
| 6. | The third , the orientational order parameters of the interface molecular layers can be greater or less than that of the bulk system , which is depend on the materials and physical processing conditions , and can apparently influenced by the n - i phase transition when the surface field is week 最后,视定向层的材料不同和物理处理条件不同,界面层上的分子取向序参数可以小于或大于液晶体内的序参数,且当表面作用较弱时液晶体内的n - i相变才会明显影响界面分子层上的序参数。 |
| 7. | Through analysis of potential vorticity in isobaric surface field , in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation , at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward , form one vertical disturbance column , now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance , precipitation also weaken 通过对等压面的位涡分析,发现了在暴雨发生前,在对流层低层有正位涡扰动存在并向北形成倾斜的扰动柱,同时也反映了对流层低层正位涡扰动对强对流天气的触发作用;随后高层正位涡向下扰动,形成一个垂直扰动柱,这时对应降水的发展阶段:在暴雨的鼎盛阶段, 600 700hpa上空维持水平分布的等值线,在其上还有正的位涡扰动;当近地面出现负的位涡扰动时,降水随之也减弱。 |
| 8. | Through analysis of potential vorticity in equity - entropy surface field , a relatively high potential vorticity center in cyclone top in low - troposphere have discovered , and make cyclone develop in a more deep cyclone circulation by this ; and an anticyclone circulation zone with more severe low potential vorticity in high - troposphere 通过对等熵面的位涡分析,发现了对流层中低层的位涡场,在气旋上方有一个相对高位涡中心,由此使得气旋在一个比较深厚的气旋性环流中发展;而对流层高层则是一个伴有较强位涡低值的反气旋环流区。 |