平面角

A unit of ''.'angular'.'' measure equal to the angle subtended at the center of a circle by an arc equal in ''.

弧度平面角的一种衡量单位，其大小为''。

The unit of plane angle adopted under the System International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees).

国际单位制采用的平面角单位；长度等于半径的弧所对的圆心角。

The paper aimed at resolving the question of side value of Laplace equation and Poisson equation in plane angular domain by using integral equation of the solution of mathematic physics equation.

旨在利用数学物理方程解的积分公式，去解决平面角形区域内Laplace方程和Poisson方程的边值问题，而其关键在于构造相应域内的格林函数。

Compared with the common definition in the three-dimension method, the radiation intensity I〓 after dimensionality reduction is defined on the base of plane angle.

与三维方法不同的是，降维后的辐射强度I〓是在二维系统平面角的概念上导得的，其值为辐射力E的一半，即I〓=E/2。

Objective To study the relationship between facial growth pattern and sagittal horizontal plane angles.

目的 研究面部生长型与头颅矢状水平向平面角的关系，验证面部后前面高比的诊断意义。

The practical problem of the arbitrary plane angle (the edge of the angle is the line at arbitrary position) in space and its projective angle is analyzed and studied in this paper.

本文对空间任意平面角（角边可为任意位置的直线）及其投影角这一具有实用性的几何问题进行分析研究；用几种不同的解析方法得出在各种情况下的关系式，从而能以最少的参变量，进行准确而简便的计算。

The results show that, during the period of collision between the sand grain and the sand bed, the lost kinetic energy is more than half of the total energy. Moreover, because the percentage of collision angles with more than 0° is up to 70％, the vertical speed of sand increases even if the kinetic energy decreases, which ensures that the sand particles can receive more energy from the air to keep on the saltation movement.

实验结果表明，沙粒与沙床碰撞过程中损失的动能超过总能量的一半，且由于碰撞平面角大于0°的比例达到70％，即使沙粒在碰撞过程中能量有所损失，沙粒与沙床碰撞后垂直分速度增加的现象仍比较普遍，使得沙粒在与气流相互作用的过程中获取更多的能量，从而为沙粒的持续跃移提供了保证。

Cephalometric analysis was taken with lateral cephalogram including FH-PP, FH-NPg, AB-NPg, and APDI.

头颅侧位定位片测量指标为，腭平面角、面角、AB平面角及APDI值。

Complete horizontalization of the occlusal plane was achieved in five patients, whereas a cant of 1-4 degrees persisted in six patient.

结果：11例患者均顺利完成治疗，游离皮瓣均获得成功，所有患者面部偏斜畸形及咬合关系得到明显改善，5例患者咬合平面完全摆正，仍有6例患者咬合平面角维持在1°－4°。

Chinese in Taiwan were characteristically different from Japanese by having a smaller interincisal angle, lower frontal facial height, mandibular angle and mandibular plane angle.

3在台湾中国人与日本人不同之处在於在台湾中国人上下门牙间角较小，前下颜面高，下颚角、下颚下缘平面角较小。

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。