直線族 的英文怎麼說

中文拼音 [zhíxiànzú]
直線族 英文
family of straight lines
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 族 : 名詞1 （家族） clan 2 （古代的一種酷刑） a death penalty in ancient china imposed on an offender ...
  • 直線 : 1. （不彎曲的線） straight line2. （急劇的） steep; sharp
  1. In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking

    在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。
  2. The demonstration of the conic section is an envelope of family of straight lines

    圓錐曲線是直線族的包絡的證明
  3. These are our arms, that is, those of my father, but they are, as you see, joined to another shield, which has gules, a silver tower, which are my mother s

    這是我家的紋章，也就是說，是我父親這一族的，但您也看到了，這旁邊有一面盾，上面有紅色的直線和一座銀色的塔樓，那是我母親家族的。
  4. The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones, that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface, also is the vertical trajectory of the straight generatrixes

    前兩種傳動形式的準線分別為節錐面上的斜航線與測地線，後者的準線為單葉雙曲面上沿直母線方向的等螺距曲線，且為直母線族的正交軌線。
  5. Chinese character is the core of chinese tradition culture and the main tool of information exchange. the western character, just like english, which is one dimension linearity character, can be put into the computer directly. but the old and complex chinese character, which belong to two dimensions square character, needs special input method software to put it into the computer

    漢字是中華民族傳統文化的核心和信息交流的主要工具，古老而復雜多樣的漢字屬於二維平面的方塊字，不像英文等西方文字那樣是一維線形文字，可以直接輸入計算機，而是需要採用特殊的漢字輸入法軟體。
  6. In chapter 3 we obtain a new upper bound for " k - l problem " concerning line transversal to unit disks in the plane, where we prove that for a finite disjoint family f of unit disks in the plane, there is a line intersecting all but at most 5 members of f suppose that even " three of the members admit a line transversal. thus we improve the latest upper bound 12

    在第3章中我們討論了直線橫截的有關問題，給出了單位圓「 k l 」問題的一個新上界，即證明了對于平面上有限個兩兩不交的單位圓形成的集族，若其中任三個單位圓可被一直線橫截，則存在一條直線至多不與此集族中的5個單位圓相交，從而改進了原有上界12
  7. For children of preschool age, manchu people value moral education, emphasize the importance of relatives group, encourage children to control themselves, not always depend on parents. when children arrive the age to teach them, they could be taught

    滿族人心直口快，性情剛烈，具有組織本位意識、級別意識和注重功績的意識，重名聲和面子，有尚武精神，喜好引進外族文化，長於民族聯合和統一戰線。
  8. A geometric transversal is defined to be an affine subspace ( such as a point, a line, a plane, or a hyperplane ) intersecting every member of a given family. in part i we discuss three kinds of such problems. in chapter 2 we discuss point transversal to a family of translates of a convex sets in the plane, where we prove a famous conjecture of griinbaum ' s by a concrete and straightforward method for some special cases

    如果一仿射子空間（如一個點，一條直線，一個平面，或一個超平面）與一給定集族的每一個元都相交，則我們稱該仿射子空間為該給定集族的一個幾何橫截（點橫截，直線橫截，平面橫截等） ，也稱該仿射子空間橫截該給定集族。
  9. These events all centred on the basic contradiction, which is the antagonism between china and japan ; they all centred directly on the historical need for an anti - japanese national united front

    這些事變，統統都是圍繞著中國和日本對立這一基本矛盾的，都是直接圍繞著建立抗日民族統一戰線這個歷史要求的。
  10. These are two families of straight line, known as the characteristic lines.

    這是兩族直線，叫做特徵線。
  11. As the mainstay of national construction of future, how are university students " ideological and ethical standards, which concerns the appearance of china in the 21st century directly, concerns our country ' s socialist modernized strategic objective could be realized, concerns and could insist that the basic line of the party does not waver for 100 years, concerns the great rejuvenation of chinese nation

    大學生作為未來國家建設的主力軍，他們的思想道德素質如何，直接關繫到21世紀中國的面貌，關繫到我國社會主義現代化戰略目標能否實現，關繫到能否堅持黨的基本路線一百年不動搖，關繫到中華民族的偉大復興。
  12. Lines are selected by neighborhood - rule or window - rule to compute projective invariants

    在所得直線族中按照鄰近規則或者窗口規則挑選直線計算投影不變量。
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