undersides

英 [ˈʌndəˌsaɪdz]

美 [ˈʌndərˌsaɪdz]

n.  下侧; 底面; 底部; 下表面
underside的复数

柯林斯词典

• N-COUNT 底面；下面；下侧
  Theundersideof something is the part of it which normally faces towards the ground.
  1. ...the underside of the car.
     车的底部
  2. ...the underside of the eyelid.
     眼睑内侧

双语例句

• Spoilers and undersides must therefore be regularly checked for damage!
  因此必须定期检查扰流板和底板是否有损坏现象！
• The two cylinder's undersides are equal.
  圆柱两个底面相等。
• These arguments support the notion of a convective mantle, with the plates being rafted along on its surface, propelled by frictional drag on their undersides.
  这些论据支持了一个对流地慢的概念，板块在其摩擦拖曳下沿地慢表面类似于船浮在水上一样移动。
• Stout tropical swamp fern ( especially tropical America) having large fronds with golden yellow sporangia covering the undersides.
  长有下侧带有金黄色孢子囊的宽大复叶的低矮热带沼泽蕨（特别是分布在美洲热带）。
• When it receives sun it tends to stay smaller and more compact and the leaves exhibit a much more intense colouring-especially on the purple undersides of the leaf.
  当它获得充裕的阳光时，株型会趋于更矮小和紧凑，叶片呈现出更加鲜艳的色彩，尤其是叶背紫色的一面。
• Showy tree fern of New Zealand and Australia area having a crown of much-pinnated fronds with whitish undersides. the ferny shadows of locust leaves.
  新西兰和澳洲地区的一种艳丽的下侧拥有多羽复叶树冠的树蕨。刺槐树叶子的蕨状影子。
• An approach of division and combination for capacitance is obtained by using two coaxial and parallel conducting surfaces of a frustum of a prism of regular polyhedron with the same height and two undersides in a plane respectively.
  通过求解两同轴、平行、等高、上下底面分别共面的正棱台导体面的电容，给出了求解电容的分割组合法。
• Fern of West Indies and South America having fronds with bright golden-yellow undersides.
  西印度和南美洲一种带有下侧呈金黄色的复叶的蕨类植物。
• Tropical American fern having fronds with white undersides.
  下侧呈白色的复叶的一种美洲热带蕨类。
• Terrestrial tropical ferns having fronds with powdery yellowish or white undersides; sometimes placed in family Polypodiaceae or Adiantaceae.
  陆生的热带蕨属，叶下面呈淡黄色或白色，粉状；有时归入水龙骨科或裸子蕨科。