right-angle

n.

直角；

1. One line cuts another at right angles.
   一条线与另一条线成直角相交。
2. An angle in a semicircle is a right angle.
   半圆所对的圆周角是直角。

Immunophenotyping of Acute Leukemia by Flow Cytometric Analysis: Use of CD45 and Right-Angle Light Scatter to Gate on Leukemic Blast...
Transformation optical designs for wave collimators, flat lenses and right-angle bends
Laser prostatectomy performed with a right-angle firing neodymium:YAG laser fiber at 60 watts power setting.
Microstrip Discontinuity Capacitances for Right-Angle Bends, T Junctions, and Crossings
Angle measurement based on the internal-reflection effect and the use of right-angle prisms.
RIGHT-ANGLE DRIVE FOR SLIDE OUT ROOM
Natural convection in right-angle porous trapezoidal enclosure partially cooled from inclined wall ☆
Right-angle slot waveguide bends with high bending efficiency
Interferometer with right-angle reflector surfaces at end of each divided beam
Cement compositions for cementing of wells enabling gas channelling in the cemented annulus to be inhibited by right-angle setting