elliptical surface 中文意思是什麼
-
Camellia granthamiana is a type of tree, its leave alternate, elliptical, coriaceous, margin with small blunt teeth. upper leaf surface is shining darkgreen, lower is paler and with veins protruding and clearly marked
大苞山茶是一種常綠喬木，葉互生，橢圓形，具革質，葉面光亮深綠色，葉背色淡，有清晰葉脈琥凸出，而葉緣具細小的純。 -
Camellia granthamiana ) is a type of tree, its leave alternate, elliptical, coriaceous, margin with small blunt teeth. upper leaf surface is shining darkgreen, lower is paler and with veins protruding and clearly marked
大苞山茶是一種常綠喬木，葉互生，橢圓形，具革質，葉面光亮深綠色，葉背色淡，有清晰葉脈琥凸出，而葉緣具細小的純齒。 -
Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
超聲波電機（ ultrasonicmotor ）是近二十年來發展起來的一種新原理電機，其原理不同於傳統的電磁型電機，它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動，通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比，具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點，因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。 -
The particle motion is elliptical retrograde in contrast to elliptical direct orbit for surface waves on water.
質點的運動是橢圓倒轉，而不是象水上的面波那樣的橢圓正轉。 -
Being a sort of new principle micromotor in the fronitier of science, the ultrasonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor
本文以這一新型電動機為研究對象，對其運行特性和控制策略進行研究，是有較重要的理論和實際意義的。 -
The force of gravity is not constant everywhere for elliptical form and rugged surface of the earth.
由於地球的橢圓形狀及其高低不平的表面，重力不是到處都一樣的。 -
Its fundamental is that the ray emitted from a focus ( front ) of elliptical will flock together on the other focus ( back ) by the reflection on the elliptical surface. we set a scatter aperture on the back focus
橢圓柱面的前焦線上是射線源，晶體固定在一個橢圓基底上，其表面構成一橢圓柱面， x射線經晶體衍射后會聚於後焦線上。 -
The results indicated that ( 1 ) " longxianhuosuan " presented more regular and more densely - arranged epidermal cells in its scapes than " gailiangsuan " ; ( 2 ) " longxianhuosuan " showed a lower stomata number but a larger stomatal aperture in its scape surface than " gailiangsuan " ; its scapes had a great number of secretory cells, which had a larger size and appeared earlier ; its scapes presented a smaller number of vascular bundles with smaller diameters ( 3 ) " longxianhuosuan " had polygonal cells in its scape pith with their intercellular space occupying a small proportion while " gailiangsuan " showed elliptical cells in its scape pith with their intercellular space occupying a high proportion
結果表明： （ 1 ） 「隴縣火蒜」比「改良蒜」蒜薹的表皮細胞形狀規則，排列緻密；角質層較薄； （ 2 ） 「隴縣火蒜」比「改良蒜」蒜薹表面的氣孔數量少，但開張度大；分泌細胞出現早、體積大、數量多；維管束數量少、直徑小； （ 3 ） 「隴縣火蒜」蒜薹髓細胞衛多邊形，髓細胞間隙率小，而「改良蒜」蒜薹的髓細胞呈橢圓形，髓細胞間隙率大。 -
Taking practical situation of this project and much engineering experience into account, the scheme with axle golden section elliptical arc surface is proposed through comparing nine optimization schemes with model test
結合工程實際和以往經驗，比較了9種進水口曲線型式的試驗結果，確定了長短軸黃金分割比的橢圓弧面的方案。 -
They are available for viewing at over the next seven months, the orbiter will " aerobrake, " dipping into mars " atmosphere and gradually changing its elliptical orbit into a near - circle about 185 miles above the planet ' s surface
在以後的7個月內， mro將緩慢沉入火星大氣層，並漸漸由橢圓形軌道過渡到距火星表面約185英里300公里的近圓軌道。 -
Based on pressing practical experience of eha4120 double - faced clad plate elliptical head, the type head external surface clad layer crack reason during pressing process were analyzed and discussed, and the head pressing task was fulfilled successfully through improving the pressing procedure
摘要根據eha4120雙面復合板橢圓封頭的沖壓實際經驗，分析探討了此種封頭在壓制過程中外表面復合層產生裂紋的原因，通過改進壓制工藝，成功地完成了封頭的壓制任務。
分享友人