顶体

The effect of different agronomic measures No topping(T1),Topping(T2),Topping+K-2SO-4(T3),Topping+Applying IAA 1 time(T4),Topping+K-2SO-4+ Applying IAA 1 time(T5),Topping+K-2SO-4+Applying IAA 2 times(T6) on chromoplast pigment and its degraded products content in flue-cured tobacco leaf was studied.

研究了不打顶(T1)、打顶(T2)、打顶+追施K2SO4(T3)、打顶+涂抹生长素1次(T4)、打顶+追施K2SO4+涂抹生长素1次(T5)、打顶+追施K2SO4+涂抹生长素2次(T6)6种调控措施对大田期烤烟叶片质体色素含量及其调制后降解产物含量的影响。

The several shapes of diamond grains have been observed in SEM: truncated cube, octahedron, truncated cubo-octahedron, twinned cubo-octahedron, twinned regular decahedron and twinned regular icosahedron. Most of diamond grains are octahedron.

用扫描电子显微镜观察到多种外形的金刚石颗粒：截顶立方体、未截顶正八面体、截顶立方八面体、孪晶立方八面体、正十面体和正二十面体的金刚石颗粒。

The connecting of neighbour tetrahedran with common vertex angle forms M—O layer,and the connection of neighbour octahedran with common edge ...

偏岭石结构中近邻四面体与四面体共顶连接构成M—O层，八面体与八面体共棱或共面连接构成Al—O层；而四面体与八面体通过不规则的共顶连接构成近程层状结构。

The connecting of neighbour tetrahedra n wit h common vertex angle forms M—O layer,and the connection of neighbour o ctahedran with common edge or plane forms Al—O layer.

偏岭石结构中近邻四面体与四面体共顶连接构成M—O层，八面体与八面体共棱或共面连接构成Al—O层；而四面体与八面体通过不规则的共顶连接构成近程层状结构。

It was point out that main roof can form the voussoir beam structures in the inclination, and immediate roof located at the middle\|lower section of a longwall face probably forms a voussoir arch structure with a small scale because of waste filling.

提出了大倾角条件下老顶岩层在运动中易于形成倾斜砌体结构板大结构，直接顶岩层则因上段冒落矸石充填，在采场中下段形成砌体梁小结构，并探讨了中下段小结构平衡的极限条件和结构失稳形式

Results: ADC in MS group was increased in all regions of NAWM compared to controls(P＜0.05),significantly higher in the body of corpus callosum, internal capsule, periventricular WM, frontal WM, parietal WM and occipital WM(P＜0.01). FA value in MS group was decreased in the body of corpus callosum, internal capsule, periventricular WM, frontal WM, parietal WM and occipital WM(P＜0.05), the genu and splenium of CC,middle cerebellar peduncle showed an insignificant trend of lower FA.

结果：MS组的正常表现脑白质的ADC值均高于对照组(P＜0.05)，以胼胝体体部、内囊、侧脑室旁及额、顶、枕叶脑白质更为显著(P＜0.01)；MS组的FA值与对照组比较，胼胝体体部、顶、额、枕叶白质及内囊、侧脑室旁发现明显降低(P＜0.05)，以后4个部位更为显著(P＜0.01)，而胼胝体膝部、压部和小脑结合臂有降低趋势，但无统计学意义。

The residual stress in bent pile can be ignored. The curvature of batter pile has important influence on additional moment to bent pile under vertical load on top. When the radius of curvature on the upper segment of pile is small, the additional moment can not be ignored.

得到以下结论：桩体由于施打而发生的弯曲在桩体中产生的残余应力可以忽略不计；桩顶竖向荷载作用下桩身的弯矩同桩的偏斜曲线有重要关系，桩顶处的曲率较大时，桩身的弯矩在工程中是不能忽视的。

This paper introduces the quality control in the production of huge cemented carbide six -face anvils,which are applicated to synthesize artificial diamond in large size capacity.

概述了与人造金刚石合成大腔体相配套的硬质合金六面顶大顶锤的质量状况，分析了大顶锤质量与使用寿命的关系，从内部结构和外部质量两方面讨论了大顶锤质量控制的方向，提出了提高大顶锤质量、降低锤耗的几种方

Based on the structural characteristics of single roof key stratum in shallow seam longwall face, the structural model of the roof key stratum in a state of plasticity is established.

针对浅埋煤层单一关键层长壁开采时顶板岩体结构的破断特征，建立了顶板岩体关键层塑性状态下的结构模型。

3The effect of cryopreservation on the acrosomal reaction of spermatozoa was analyzed with chlortetracycline staining.

冻存后大鼠精子细胞膜的完整性未受到破坏；精子的线粒体鞘和顶体受到较明显的破坏。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。