查询词典 crown

Curve functions of axial buccal crown and gingiva contour of each section were acquired by means of curve fitting, and the angle of emergence pofile was calculated, which represents the degree of undercut. Results There is unique relationship between axial crown and gingiva contour individually. This character of tooth is similar to its contralateral tooth.

结果 不同个体的牙冠轴面外形和牙龈外形有其特定的几何关系，同一断面的牙冠轴面外形曲线对应特定的牙龈外形曲线；同名牙同一断面的牙冠轴面外形之间及牙龈外形之间的重叠性很好。

Three cross-sections were made through crown and gingiva of the model tooth. Curve functions of axial buccal crown and gingiva contour of each section were acquired by means of curve fitting, and the angle of emergence pofile was calculated, which represents the degree of undercut.

以下颌第二前磨牙为研究对象，在牙列模型上通过牙冠部、牙龈作3个纵断面，用曲线拟和的方法得到每个断面的牙齿轴面外形及相应牙龈外形的曲线方程，以此分析两者之间的关系并计算牙冠起始外形角度，即倒凹程度的大小。

when removing the bicuspid full crown, the direction of wallop must be parallel to the long axis of full crown to the best of its abilities.

拆除双尖牙全冠时，冲击力的方向应该尽量与牙冠长轴平行，大小为24.59±5.98kg较为适合。

Crown bioscience is a fully owned subsidiary of crown bioscience and serves as its operational base in china.

公司主要从事医药研究的技术服务，公司现正寻找更多的志趣相投的人士加盟。

Traveling Block - The block and tackle which is rigged with the crown block by multiples of drilling line strung between the crown block and the traveling block.

游动滑车：通过排列穿过天车和游动滑车的多股钻井绳和天车装配在一起的滑轮及装备。

And there are obvious difference of stemflow among different species, the main factors that affect the stemflow are crown structure, diameter breast-high and crown width.

林内透雨量与降雨量也存在极显著的线性关系。6种森林类型的林内透雨量从大到小依次为灌草地、马尾松林、柏木林、针阔混交林、阔叶林和针叶混交林。

Compared to the CK,grafting (included one time grafting and two times grafting) can decrease the tree crown and diameter breast-high and increasethe crown length and the tree height on five-year-old paulownia with different height seedlings.

与对照相比，接干对不同初植苗木高度五年生泡桐树冠的冠幅和胸径的增长量小于对照，但是增大了冠长和树高。

Octagonal-shaped crown set with blue cabochon crown.

八角形表冠设置蓝色凸圆形树冠。

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

Although Beethoven entered into the upper class, and communicated with some nobles, he never placed himself as their subordination. In 1809, Beethoven lived in Crown Prince Siji Knoff's manor. When asked to play piano for a French invader officer, Beethoven definitely refused the Crown Prince's request. Instead, he ran home in rain, took down Crown Prince's dust and smashed it. In the summer of 1812, Beethoven met Goethe in the sanitaria of Taipliz, Czechoslovakia.

贝多芬虽然进入上流社会，与王公贵族相往来，但他从不置自身于臣仆的地位。1809年贝多芬住在利希诺夫斯基亲王的庄园里，亲王要求他为法国侵略者将领演奏钢琴，贝多芬断然拒绝，冒雨回到自己的家，取下亲王的胸像摔得粉碎。1812年夏，贝多芬在捷克疗养地泰普利茨会见了歌德。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。