基面

Pollen morphology of six species were similar, all trisected circular shape in polar view, tricolporate. Observed under LM the ornamentation of exine is granular with spinules arranged sparsely and under SEM the basal part of spinule extend.

六种沙蒿的花粉较为相似，极面观均为三裂圆形，三孔沟，孔横长，外壁纹饰在光镜下表面颗粒状，在电镜下为排列较疏的刺，刺基外延。

On the basis of the model, the friction force in each meshing point on the spiral bevel gear surface covered by silver film is presented by numerical method. In addition, the result is indirectly proved by experiment.

用数值法求解了弧齿锥齿轮镀银齿面之间各啮合点处的摩擦系数；以试验方法对数学模型的正确性进行了间接验证；通过详尽的数值计算探讨了银层厚度、刀盘直径、基体硬度等参数对摩擦系数的影响。

He put the flesh in a basket and put the broth in a pot, and he brought it out to Him under the terebinth.

6：19 于是基甸去预备了一只山羊羔，用一伊法细面作了无酵饼，将肉放在筐内，把汤盛在壶中，带到橡树下使者那里献上。

The meat he put in a basket, and the broth he put in a pot, and brought them to him under the terebinth and presented them.

基甸去预备了一只山羊羔，用一伊法细面做了无酵饼，将肉放在筐内，把汤盛在壶中，带到橡树下，献在使者面前。

The second type of motif,the zinc finger,consists of a peptide loop with either two cysteines and two histidines or four cysteines at the base of the loop that tetrahedrally co-ordinate a zinc ion.

另一种基序称为锌指，由一个肽环构成，在肽环底部是两个半胱氨酸和两个组氨酸或四个半胱氨酸，与锌离子配位形成面体。

The results of the dissertation were concluded as follows:(1) It is essential to deposit a basic additive on the Mo-based catalysts for the synthesis of CH_3SH. The potassium-doped Mo-based catalysts exhibit the highest activity than that of the catalysts doped with the otherⅠA andⅡA group basic promoters. H_2-TPR and LRS characterizations suggest that the addition of a base leads to the transformation of octahedrally coordinated Mo to tetrahedrally coordinated Mo, thus leads to the split of low temperature reduction peaks. The interaction between the basic components and Mo lead to the formation of B-Mo interface phase, which are closely correlated with the formation of CH_3SH.(2) It has been found that Fe, Co, Ni and Te have evident promoting effects for the K-Mo/SiO_2 catalysts.

主要结果归纳如下：(1)在Mo基催化剂中，必须添加碱才具有可观的合成甲硫醇活性，在IA和IIA族元素中，K是最佳的碱促进剂，当K/Mo摩尔比为2，前驱体为K_2CO_3，采用共浸法制备的K-Mo催化剂活性最高。H_2-TPR和LRS表征显示，碱的加入导致表面八面体钼氧物种向四面体转化，催化剂的低温还原峰发生分裂，碱助剂与钼之间存在强相互作用形成了B-Mo"界面相"，该物种与合成甲硫醇密切相关。

In this thesis, the heterojunction with intrinsic hydrogenated amorphous silicon thin layer ( heterojunction with intrinsic thin layer: HIT) solar cells are investigated. The solar cell structure of p/i/n are fabricated. The substrate is a typical 4-inch n-type wafer with (100) crystal orientation, 1~10 ohm-cm and about 525 μm thickness. The p and i a-Si:H layers are deposited by a 13.56 MHz plasma enhanced chemical vapor deposition. The i a-Si:H layers are especially deposited by pulse-wave modulation plasma technique with fixed plasma turn-off time toff = 10 ms and changed plasma turn-on time ton= 10 to 40 ms to selectively control the different silicon to hydrogen bonding configurations. The effect of various Si:H bonds on the performance of HIT solar cells are explored.

中文摘要本论文针对异质接面薄本质层(heterojunction with intrinsic thin layer： HIT)太阳电池进行研究，采用一般典型四英吋晶向为(100，厚度约为525 μm，电阻率约为 1~10 ohm-cmn型矽晶圆为基板，制作p/i/n太阳电池，p及i层薄膜以13.56 MHz电浆加强化学气相沈积，i层并采用脉波调变电浆技术，在固定电浆关闭时间toff = 10 ms及改变电浆开启时间由ton = 10 ms 至40 ms条件下制作具有不同矽氢键结微结构的氢化非晶矽薄膜以探讨不同矽氢键结对太阳电池性能的影响。

The cells in the centre of the trochophore showed very strong positive NSE and strong positive POD.

在担轮幼虫期，中央的内脏团原基呈NSE极强阳性或POD强阳性，其余细胞则呈NSE强阳性或POD阳性。D形面盘幼虫期，外套膜和内脏团呈NSE极强阳性或POD强阳性，其余部位则呈NSE强阳性或POD弱阳性。

Because the properties of the hexagonal boron nitride particles are much different from those of the yttria powders,resulting in some problems in process of preparing the hBN shell mould .

在型壳制备过程中除了使用氮化硼作为面层造型材料外，用钇溶胶作为粘结剂，同时通过加入少量的氧化钇来改善氮化硼基复合型壳的性能。

In addition, there are bond areas between the new and the primary coverage because of the growing up of the plating coat, which may lead to the emergence of micro crack on the coating owing to such causes as too big or uneven impact during plating process, little distortion of global granular zinc dust inside the plating coat, less tight coalescence of the zinc dust flecks.

由于形成镀层的过程处在酸性环境，在镀层增厚过程中不可避免把酸性溶液包裹在镀层里面，酸性溶液会与金属基体和镀层反应，产生氢气，必然会寻找通道选出，形成微气孔；镀层是逐渐形成的，新生镀层与原有镀层之间存在结合面；镀覆过程由于撞击力过大或者不均匀，镀层内部球形颗粒状锌粉变形较小，球形颗粒与球形颗粒的结合不严密等，这些原因会导致镀层产生微裂纹。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。