|
|
|
|
|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Methods are developed for the calssification of homogeneous Riemannian hypersurfaces and the classification of linear transitive reductive algebraic group actions on pseudo-Riemannian hypersurfaces.
|
| 例句来源 | |
The theory is applied to the case of cubic hypersurfaces, which is the one most relevant to special geometry, obtaining the solution of the two classification problems and the description of the corresponding homogeneous special K?hler manifolds.
|
| 例句来源 | |
For the case of positive characteristic we use the classification of finite irreducible groups generated by pseudoreflections due to Kantor, Wagner, Zalesski? and Sere?kin.
|
| 例句来源 | |
The aim of the paper is the study of the orbits of the action of PGL4 on the space ?3 of the cubic surfaces of ?3, i.e., the classification of cubic surfaces up to projective motions.
|
| 例句来源 | |
We then give a combinatorial classification of reductive monoids by means of the theory of spherical varieties.
|
| 例句来源 | | 更多 |
|
|
|

| | The assignment of the fundamental frequencies of C4H2 given by Timm and Mecke is discussed and a new assignment in accord with the selection rules is suggested. Nine force constants for the molecule are calculated according to Timm and Mecke's assignment, while the new assignment gives no reasonable constants for the deformation vibrations. Further study of the Raman spectrum and the infrared absorption is necessary for a final classification of the deformation frequencies. | | 按Timm Mecke之C_4H_2基本振动率,吾人求得一含有九个常动之势能式中各常数之值。 | | 文摘来源 | | The pterion of 400 Chinese adult skulls, 252 males and 148 females, wasstudied. It was found that the epipteric bone was rather common. When cal-culated according to A. J. P. von Broek's classification which includes epiptericumanterius, epiptericum posterius, in addition to the most common epiptericumtypicum, the frequency was 42% in terms of number of skulls ed 27% interms of number of sides. The fronto-temporal suture type, however, was smallin number (3.0% in terms of the number of skulls and 1.75... | | 检查了400个中国成人头颅的翼上骨及额颞缝,以侧为单位计算,发现翼上骨的数目为216侧合27%,以头颅为单位计算,发现翼上骨的数目两侧者48例(两侧同型及非同型)一侧者120例共168例合 42%,男女分开计算,以侧为单位,男性23%,女性33.8%,以头颅为单位,男性35.71%,女性52.7%,女性占多数。额颞缝以侧计算共14例合1.75%,以头颅数计算,两侧者2例一侧者10例共12例合3%。我们这个工作承张鋆教授的指导特此志谢。 | | 文摘来源 | | Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned grap... | | (Ⅰ)中国煤的分类法 (а)元素分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则用简化特性系数 (б)实用分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则采用去灰定炭百分数F.C。 (Ⅱ)中国煤的分类类别 根据上列二个新的图解分类方法,中国煤在有元素分析或实用分析数据后,即可从图解上求得分类类别,中国煤按照国际间一般分类标准,可以分为无烟煤,瘠煤、蒸汽结焦煤,炼焦煤,蒸汽肥煤,瓦斯煤,长火焰烟煤,褐煤等,已列在中国煤突用分析数据表的最后一项。 (Ⅲ)中国煤的特性 (а)中国煤的成分─—中国煤的成分,除灰分与硫磺的变化无规律外,其他成分如碳素,氢素,氧素,氮素,分析水分等的变化极有规律,此外煤的工作质水分则受外界气候影响而变化,但吸收水分(即分析水分)划与煤的含氧量有失,而变化很有规律。 (б)中国煤的元素分析与实用分析的关系─—中国煤的实用分析数据,在烟煤区域,可以按照直线关系公式,转变力元素分析的近似数据。例如其他成分如H,O及N S等亦可从直线公式(如图上所示)求得平均数值。 (в)中国煤的发热量──中国煤的发热量,若有元素分析数据,则应用门捷列夫公式来计算核对;若仅有实用分析数据,则... | | 文摘来源 | |   | | << 更多相关文摘 |
|
相关查询: | |
对查询结果不满意
|
|
|
|