极面

Pollen grains prolate, semicircular in polar view.

花粉粒长球形，半圆的在极面观。

Considering the influence of quadratics, the entrance and exit plans of the dipoles are made conicoids, the dipoles not only can deflex ions, but also can focus at the entries and disperse the ion at the exits.

考虑高阶分量的影响，二级偏转磁铁的入口和出口极面采用二次曲面形状，除使磁铁起偏转作用外，还有聚焦和发散的功能。

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。

Gain-before-feedback is the maximum amplification of the sound before the sound system goes into feedback and starts squealing.

MIC的极面曲线图可以让我们对它的频响有很好的了解。

The duct and the wake of duct is also discreted by a number of small hyperboloidal quadrilateral panels. Constant source and doublet are distributed on duct while there are only doublet on wake of duct.

以面元的几何形心为控制点，在每个物面面元上布置等强度的源汇分布和偶极子分布，每个尾涡面面元上布置等强度的偶极子分布。

Topics include: properties, preparation, and processing of compound semiconductors; theory and practice of heterojunctions, quantum structures, and pseudomorphic strained layers; metal-semiconductor field effect transistors; heterojunction field effect transistors and bipolar transistors; photodiodes, vertical-and in-plane-cavity laser diodes, and other optoelectronic devices.

主要内容包括：化合物半导体的特性、制备与制程；异质接面、量子结构和假晶应变层的理论与实际应用；金属半导体接面场效电晶体；异质接面场效电晶体以及异质接面双极电晶体；检光二极体、垂直和平面共振腔镭射二极体、以及其他光电元件。

Topics include: properties, preparation, and processing of compound semiconductors; theory and practice of heterojunctions, quantum structures, and pseudomorphic strained layers; metal-semiconductor field effect transistors; heterojunction field effect transistors and bipolar transistors; photodiodes, vertical-and in-plane-cavity laser diodes, and other optoelectronic devices.

主要内容包括：化合物半导体的特性、制备与制程；异质接面、量子结构和假晶应变层的理论与实际应用；金属半导体接面场效电晶体；异质接面场效电晶体以及异质接面双极电晶体；检光二极体、垂直和平面共振腔雷射二极体、以及其他光电元件。

The strip-like exine ornamentaton and the irregularly thin-horizontal grain on the strip-like sculptures are the common features of the pollen morphology....

花粉的大小和形状，尤其是极面观特征，在供试种之间有不同程度的差异。2亚属之间无明显界限。

Pollen grain semiangular or semilobate in polar view.

花粉粒半具角裂或半半具角在极面观。

Pollen grain semiangular in polar view.

花粉粒半具角在极面观。

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。