Definition: The atomic surface is the (n-m)-dimensional object in superspace correspondingto a point atom in physical space. For incommensurately modulated crystals with a smoothmodulation function,these atomic surfaces are unbounded. They have the same d...[继续阅读]

    Definition: along the same line as an axis of rotation in geometry轴的zhóu deOrigin: from axisExample:On Mercury,for example,the interplay between axial tilt and orbital path would make ananalemma that’s a nearly straight line from east to west.例如,在水星上,轴向倾斜...[继续阅读]

    Definition: The angle formed by two surfaces of a structure,as of a tooth,in which the lineof union is parallel with its axis.轴角zhóu jiǎoExample:The Chinese encoding method,the key technology and the characteristics of pseudorandom codeabsolute photo elec...[继续阅读]

    Definition: a plane that includes two of the crystallographic axes轴面zhóu miàn又作pinacoidExample:Please note that this syncline is of inclined axial plane which has the same dip direction as thelimb with gentle dip angle.请注意,这个向斜构造的轴面是倾斜的,轴面的倾向与具有...[继续阅读]

    Definition: The axis of symmetry or line of symmetry of a two-dimensional figure is a linesuch that,for each perpendicular constructed,if the perpendicular intersects the figure at adistance “d” from the axis along the perpendicular,then there exists anot...[继续阅读]

    Definition:The Babinet compensator is a continuously variable,zero-order retarder. Itconsists of a birefringent wedge which is movable and another birefringent wedge which is fixedto a compensator plate. The orientation of the long axis of the wedges is p...[继续阅读]

    Definition: In solid state physics,a band gap,also called an energy gap or bandgap,is anenergy range in a solid where no electron states can exist. In a graph of the electronic bandstructure of a solid,the band gap generally refers to the energy differenc...[继续阅读]

    Definition: (Chemistry/Physics) A theoretical model describing the states of electrons insolid materials,which have energy values only within certain specific ranges,is called bands.The band theory accounts for many of the electrical and thermal propertie...[继续阅读]

    Definition: also called basal plane,is a pinacoid of two parallel faces that intersect only thecrystallographic axis底轴面dǐ zhóu miànbasal: serving as or forming a base在底部的zài dǐ bù depinacoid: a plane that includes two of the crystallographic axes轴面zhóu mi...[继续阅读]

    Definition: also c-lattice,a space lattice in which each unit cell has lattice points at thecenters of each of two opposite faces as well as at the vertices; in a monoclinic crystal,they arethe faces normal to one of the lattice axes底心格子(C-格子)dǐ xīn gé zi...[继续阅读]