长方形形导轨  rectangular guideway

方形截面  square section; quadrate cross section; squared cross-section

方形截面管  tube bundle with square section

方形截面柱体  square cross-section column

古代箜篌的方方面面  Aspects of the Ancient Konghou

正方形截面长隧道  long square-section tunnel

正方形截面硅晶锭  square silicon ingot

正方形截面通道  square channel

矩形截面弹簧  spring with rectangle’s section

三角形截面弹芯  triangle cross-sectional projectile

反导弹导弹  Antimissile missile

长方形方材  Rectangular timber

法截面方位角  normal section azimuth

方截面弯管  square duct

截面方程  cross section equation

∏形截面  shaped cross section; shape cross sectio

C形截面  C-section

H形截面  H-section

L形截面  L shaped section; L-shaped section; L-shaped cross section; L-cross section