下三角的英文

• lower triplet

• "下"英文翻译    below; down; under; undernea ...
• "三角"英文翻译    triangle; trigonometry; trig ...
• "海下三角洲" 英文翻译 :    undersea delta
• "舌下三角" 英文翻译 :    hypoglossal trigone
• "水下三角洲" 英文翻译 :    submerged delta; undersea delta
• "锁骨下三角" 英文翻译 :    subclavian triangle
• "下三角肛板" 英文翻译 :    cryptodeltoid
• "下三角胶芯" 英文翻译 :    lower bead filler
• "下三角矩阵" 英文翻译 :    lower triangular matrix
• "腰下三角" 英文翻译 :    lumbar triangle
• "枕下三角" 英文翻译 :    inberior occipital triangle; inferior occipital triangle; suboccipital triangle
• "颌下三角" 英文翻译 :    submandibular triangle; trigonum submaxillare
• "颏下三角" 英文翻译 :    submental triangle
• "单位下三角阵" 英文翻译 :    unit lower triangular matrix
• "颈动脉下三角" 英文翻译 :    inferior carotid triangle; triangle of necessity
• "松果体下三角" 英文翻译 :    trigooa subpineale
• "下三角形矩阵" 英文翻译 :    lower triangular matrix; lower-triangular matrix; matrix, lower-triangular
• "颌下隙, 颌下三角" 英文翻译 :    submaxillary space
• "二腹肌三角, 颌下三角" 英文翻译 :    digastric triangle
• "水下三角洲前沿" 英文翻译 :    submerged delta front
• "水下三角洲前缘" 英文翻译 :    submerged delta front
• "下三角瓣手术法" 英文翻译 :    low triangular flap technic
• "下颌下三角, 下颌下区" 英文翻译 :    trigooa submandibulare
• "下颌下三角,下颌下区" 英文翻译 :    submandibular trigone
• "严格下三角矩阵" 英文翻译 :    strictly lower triangular matrix

• The algebraic properties of a type of infinite lower triangular matrices related to derivatives
  一类无穷下三角矩阵的代数性质
• Our study showed the following : mastoid process , transverse process of the atlas , and occipital condyle were important signs , superior and inferior suboccipital triangle is the important mark for distinguishing vertebral artery
  研究显示：乳突、环椎横突和枕髁是术中重要的解剖学标志，上、下枕下三角是暴露椎动脉入颅前的一个重要解剖学标志。
• Instead of adopting exterior matrix p ( s ) diagonal 1 or s , triangle 0 or as which the predecessors used , i employ the exterior matrix p ( s ) diagonal 1 or the structure of iir filter ( for convenience , s + i s employed ) , triangle 0 or the structure of iir filter ( for convenience , a ( s + p ) is employed ) . this method eliminate the element 1 / s in close transfer matrix whereas the predecessors ' s method carried
  但该方法采用的p ( s )主对角元素为1或s ，下三角元素为0或s 。这样，闭环传递函数就必定出现因子1 s ，不利于系统的稳定性与鲁棒性。针对这个问题，本文提出一种改进的方法，可使外矩阵p ( s )的主对角上元素为1或iir滤波器的结构形式(为简单起见，取s + ) ，下三角元素为iir滤波器的结构形式(为简单起见，取( s + ) )或0 。
• Whether they are stable or not has an important influence on off shore construction and the safty of the buildings . based on the tests of silt in marine area of chengdao , silt ' s dynamic stress - strain relationship , dynamic strength and their influencial . factors are initial researched . liquefaction of silt , including mechanism , speciality and pattern , is also discussed
  随着海洋油气开发的迅速发展，发现海上构筑物的失稳与工程地基特性有着密切关系，而国内外几大油气开采区地基土中均有大量粉土分布，本文的研究区? ?黄河水下三角州埕岛海域也是如此。
• In ship steering controller design , the nonlinear ship model should be written in siso strict feedback form . we start the recursive design with the system first state variable and continue with the second one . by introducing a change of coordinates , we choose lyapunov functions to stabilize the system and obtain the control law
  在船舶航向控制方面，考虑船舶的稳态回转非线性，应用backstepping方法设计：首先把系统化成单入单出的严格反馈控制形式(呈下三角结构) ，假设系统后一个状态变量是前一个状态变量的虚拟控制，通过适当的变量代换，在每一步构造李亚普诺夫函数，使前一子系统在虚拟控制下渐近稳定，逐步递推出控制器控制规律，使整个系统在平衡点满足一致渐近稳定性。
• The collection of all ect splines of order n forms a linear space called a space of ect splines , over which if each connection matrix is nonsingular , lower triangular and totally positive , there exist ect b splines having nonnegative , form a partition of unity , and minimal compact supports
  若每个关联矩阵都是非奇异、下三角、全正的矩阵,则在ect样条空间上存在非负的、归一的和具有最小支撑的ectb样条.由ectb样条拓广的ectb样条曲线有许多类似于多项式b样条曲线的性质