圆形垫圈安装表面
wheel washer mounting surface
Morris圆形水迷宫
rounded Morris water maze
半圆柱形边墩
semicircle cylindrical pier
半圆柱形反射器
semicylindrical reflector
semi-cylindrical reflector
半圆柱形量水槽
semi-cylinder measuring-flume
半圆柱形凸起
gibbous surface of the half-columniform conductor
保形圆柱投影
conformal cylindrical projection
变截面圆柱形空腔
varying sectional cylindrical cavity
变位圆柱蜗杆传动
profile shifted gears for cylindrical worm gear
充水圆柱壳
liquid filled cylindrical shell
粗齿圆柱形铣刀
cylindric milling cutter with coarse teeth