半圆柱形边墩
semicircle cylindrical pier
半圆柱形反射器
semicylindrical reflector
semi-cylindrical reflector
半圆柱形凸起
gibbous surface of the half-columniform conductor
圆柱形半导体量子线
cylindrical semiconductor quantum wire
圆柱形水位表垫圈
cylindrical water gauge packing
机翼形量水槽
airfoil-shaped measuring flume
抛物线形量水槽
parabolic flow measurement flume
parabolic thin-plate weir
半圆形β摄谱仪
semicircular beta spectrograph