冠

Objective To investigate the clinical effect of one-time root canal therapy and reattachment of permanent incisors with crown fracture.

目的：观察恒切牙外伤冠折后行一次性根管治疗与断冠再接术的临床效果。

In mathematical terms, modern algebra is set of objects with rules for connecting or relating those objects.

答案：B 测试点：冠词。分析：set是可数名词，它前面一定要有冠词。应为…a set…。

He is now the boss of Yongguan, one of China's largest shelving companies.

他现在是永冠公司的老板，永冠是中国最大的顶棚制造商之一。

Lanzhou University,Lanzhou,730000The difference between the spectral reflectance curves of healthy and diseased larch canopies is obvious.In this work,we chose the larch plantations as the study object.Firstly,we selected 14 larch canopy samples and measured their spectral reflectance and photosynthetic pigment contents.Then we selected 8 spectral parameters to set up a series of linear regression models.

以吉林省延边州敦化、和龙两市林场中健康的和遭受落叶松早落病侵害的人工落叶松林为调查对象，在对野外采集的14个落叶松冠层样本进行光谱测量及光合色素含量测量的基础上，选取8个对落叶松冠层光合色素含量变化反映敏感的光谱参数参与建立其光合色素含量的一元线性回归和多元逐步回归模型。

The pole of the spherical cap is at 36°N and l04°E, and its half-angle is 30°.

球冠极位於36°N，104°E，球冠半角为30°。

In this paper, we propose a method of terrain correction in the domain of the spherical cap, and analyze the transformation of different spherical coordinates and the reconstruction of the terrain model that the method involved.

本文提出球坐标系中的球冠域地形校正计算方法，给出了该方法涉及的球坐标系之间坐标转换方法和球冠域内地形模型重构方法，并进行理论验证。

The spherical cap harmonic modelsof the geomagnetic reference field in the region are calculated also.

球冠极的空间位置坐标为39.5°N和117.0°E，球冠半角为4°。

According to the three component absolute survey data of 118 geomagnetic stations observed during 1998~2000 and 39 geomagnetic observatories and IGRF 2000, the spherical cap harmonic models of the geomagnetic field for 2000 (the truncation order is 8), and the geomagnetic secular variation for 2000~2005 (the truncation oder is 6) are calculated.

根据1998～2000年完成的118个地磁测点和39个地磁台的三分量绝对测量资料以及IGRF2000，计算2000年中国地磁场冠谐模型（截断阶数为8），以及2000～2005年中国地磁长期变化冠谐模型（截断阶数为6）。

According to the geomagnetic 3 component absolute survey data of China for 1950～1990, and using the method of spherical cap harmonic analysis, this study calculates the spherical cap harmonic models of the geomagnetic residual field in China for 1950～1990 and draws corresponding residual maps.

根据中国1950、1960、1970、1980年和1990年地磁三分量绝对测量资料，使用球冠谐和分析方法，分别计算1950～1990年各个年代中国地磁剩余场冠谐模型。

Geomagnetic field ; Spherical cap harmonic analysis ; Chinese geomagnetic reference field ; Spherical cap harmonic model.

地磁场；冠谐分析；中国地磁参考场；冠谐模型

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失