The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
平行面（底面）且侧面都是平行四边形的多面体。
If the glass were kept hot enough, it would flow over the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.
如果玻璃保持足够的温度，它就会在熔化的锡中流动，直到顶部表面也变得平整、水平，与底部表面完全平行。
If the universe's space-time is positively curved, like the surface of a sphere, parallel beams would come together.
如果宇宙的时空像球体表面一样正向弯曲，平行的光线就会交合在一起。
A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
抛物面一种有与单坐标轴平行的抛物截面和与该轴垂直的椭圆截面的平面。
Above: Salivary lips showing parallel ridges of inner surface of lower lip, last larval instar of Osmia chalybea.
上图：壁蜂老熟幼虫下唇内表面的平行纹
However, as its name suggests, it runs parallel to the surface of the material that is propagating it, rather than penetrating this material.
然而正如它的名称所提示的，它本身是与传播材料的表面呈平行移动的，而不是穿透传播材料。
Once you have made the Dakota fire hole you can easily set up a cooking surface for pots and pans by laying several parallel green sticks across the fire pit as show in the picture.
一旦火坑挖好，你可以在达科他火坑的基础上做很多改进，比如在火坑上方用绿枝搭建烤架，也可以坑边上堆一些石块，做成可以放锅的简易炉灶。
A two-dimensional model of such a universe would look like a sphere. It's impossible to have parallel geodesics (straight lines on a curved surface) — the two lines will cross at some point.
这样的2维宇宙模型就像是球体，不可能出现平行的测地线(测地线是曲面上的直线)——两直线必然在某点相交。
Gloves: Black leather or leather-like material, mid-forearm in length. The upper surface is quilted in lines running parallel with the arm.
手套：黑色真皮或皮革类材料，长及前臂的一半处。上部为有内衬垫并有与手臂平行纵向缝合线。
An analysis is made about Descartes rays of transparent round-section fibers-a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.
摘要分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象—笛卡尔线现象。
A little apart from the surf ace, the longitudinal wave beam may exist and propagate parallel to the surface, yet has to connect with its corresponding gliding irrotational waves.
离开固体表面稍远的区域，可以有平行于表面传播的纵波声束存在，但是需要与相应的滑行集散波相互衔接。
The platelet adhesion on surface of fibrillar collagen under high shear rate condition was observed by parallel plate flow chamber with McAb.
利用平行板流动小室技术研究在高剪切力条件下该单抗对血小板在胶原表面黏附的抑制效果。
Geometric shape is irregular polygon-shaped, not parallel to the surface to bulk, which shows the characteristics of the atmosphere of Stone Arts.
外形为不规则的多边形几何状，没有平行的面，以大块为主，显示出大气的石艺特点。
Door design from several parallel lines, in the distorted rotation after the formation of the surface tension.
景区大门的设计来自于几条相互平行的线条，在进行扭曲旋转后形成的张力曲面。
The optical system uses the fluorescent lamp with the collimation mirror, incident the grating surface by the parallel light, in order to produce the moiréfringe through the grating.
光学系统采用白光灯加准直镜，以平行光照射光栅面，通过光栅副产生莫尔条纹。
The present status about ultrasonic grinding of ceramics is introduced, and a mathematical model of parallel ruled surface is constructed.
介绍了陶瓷超声磨削加工现状，建立了平行直纹面数学模型。
The effects of soil and water conservation on surface runoff process in small watersheds of the Qinba mountainous region are analyzed by the parallel observation in two comparable watersheds.
采用小流域平行对比法，分析秦巴山区小流域的次降雨洪水过程，研究了水土保持综合治理对小流域洪水的作用过程。
The mathematical model of parallel and undevelopable ruled surface was constructed, the algorithm for NC ultrasonic grinding surface was founded.
建立平行、不可展直纹面数学模型，确定超声磨削加工平行、不可展直纹面时磨轮空间轨迹及其算法。
The projection onto a plane of the intersection of a surface with a plane parallel to the projection plane.
一个曲面和平行于射影平面的一个平面的交线到某个平面的射影。
A fault surface parallel to a mechanically weak horizon or layer, or parallel to bedding, that detaches or separates deformed rocks above from undeformed or differently deformed rocks below.
一个平行于机械软弱层或层理断层面，它把其上未形变的岩石或其下不同形变的岩石拆离或分隔开。
Cracks grow in directions nearly parallel to the surface.
裂纹在近乎平行于表面的方向上生长。
The Shenzhou-8 traveled east, almost parallel to the surface of Earth.
神州8号向东移动，几乎和地球表面平行。
A simple method for calculating the interaction force and interaction energy per unit area between two parallel flat plates particles in the case of constant surface potential was presented.
给出了两个平行平板颗粒处在恒电位条件时，相互作用力和相互作用能的简单计算方法。
But you forget, "she interrupted, the quick surface of her mind glimpsing a parallel."
“但是你忘了，”她插嘴道，她心灵的敏捷的外层瞥见了一个类似的东西。
But you forget, "she interrupted, the quick surface of her mind glimpsing a parallel."
“但是你忘了，”她插嘴道，她心灵的敏捷的外层瞥见了一个类似的东西。
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