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！
• Flame hardening of engine tappets is a new technology by which the undersides of tappets are heated with flame and then oil quenched.
  发动机挺柱火焰淬火是采用火焰对挺柱底面加热后再进行油冷淬火的一项新工艺。
• The two cylinder's undersides are equal.
  圆柱两个底面相等。
• 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。
• 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）。
• 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。
• 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。
• 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。
• 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。