Let Jrn,k denote the set of n-dimensional cobordism class containing a representative Mn admitting a(Z2)k-action with fixed point set of constant codimension r.
设(Z2)k作用于光滑闭流形Mn,其不动点集具有常余维数r,Jn,kr是具有上述性质的未定向n维上协边类[Mn]构成的集合。
Let Jrn,k denote the set of n-dimensional unoriented cobordism class in Nn containing a representative Mn admitting a(Z2)k-action with fixed point set of constant codimension r.
设(Z2)k作用于光滑闭流形Mn,其不动点集具有常余维数r,Jnr,k是具有上述性质的未定向的n维上协边类[Mn]构成的集合。
It s studied that the problem of finding which cobordism classes are represented by the total space of a fibering with prescribed base space N~m=RP(2)×RP(2)×RP(2)and determines the largest values of m for which there is an indecomposable M~n(n=19,21)fibered over the real projective space RP(m).
设 M~n,N~m 是光滑闭流形,p:M~n→N~m 为纤维丛投射,研究了当 N~m 为 RP(2)×RP(2)×RP(2)时,哪些上协边类具有代表元 M~n 使得 N~m 具有 N~m 上的纤维丛表示,另外,当n=19,21时,还决定了满足下述条件的最大值 m:存在不可分解的上协边类 a_n 及其代表元 M~n 使得 M~n 具有实射影空间 RP(m)上的纤维丛表示。
Enigmatic language is a superior type, but jargon, argot, lingo and cant are inferior types which developed from original riddle with dark char acteristic, social communicate inquire and man s thought evolution.
而在汉语中,它们不是属于同一层级的概念,汉语的隐语是上位类型,黑话、暗语、行话等是以隐秘性为特征,以社会交际需要和人类思维进化为前提,从古已有之的谜语发展出来的下位类型。
professional and above category
专业人员及以上类别
The above-mentioned fabrics can be classified into five categories, i.e. plain weave, twill weave, satin weave, leno weave and the velvet.
上述织物可以分成五大类——平纹类、斜纹类、缎纹类、绞经类和起绒类。
A taxonomic category of organisms ranking above a family and below a class.
目分类学上位于科之上、纲以下的类别
On this basis, string and reed instrument accompaniment was added.
在这个基础上加丝类、竹类乐器伴奏，
The gills of fishes are analogous to the lungs in terrestrial animals.
鱼类的鳃与陆上动物的肺类似。
The Humanities Spirit and Style of Song on the Original State;
上古“颂类”文学精神及其体类特征
"Type of Solution," Documents on the Terms of the Change in Speech
《类解》类文献的词汇在语音上的变化
Light organ of cephalopods and its application to taxonomy
头足类发光器及其在分类学上的应用
but two classes may be roughly seen.
但大体上可分为两类。
Resembling brass, as in color.
类似黄铜的，如在颜色上
closely related taxonomically.
在分类学上密切相关。
classification of locomotives in operatio
机车在运用上的分类
There are more than two hundred and fifty species of shark.
鲨鱼种类达250种以上。
Something resembling such a poem or song.
类似上述的诗或歌.
The human inhabitants of the world
在地球上居住的人类.
the adversary of God and Man,/Satan
上帝和人类的对手/，撒旦
Mankind's journey towards self-destruction
人类正走上自灭之途
The graph shows a bulge in the price of meat.
图表显示肉类价格上涨。
