半圆圆周率  semiciecle

500t半圆体  500 t semi-circular cylinder

凹半圆铣刀  half-round concave milling cutter

半半改正  half and half adjustment

半半拉拉  Incomplete; unfinished

半半拼乳油  half and half

半半拼物  half and half

半圆  hemicycle; Semicircle; Semi-circle; semi circle; Half-circle; semicycle

半圆β谱仪  semicircular βspectrograph

半圆棒钢  half-round bar steel

半圆贝他谱仪  aemi-circular beta spectrograpn; semicircular beta spectrograph

半圆壁  lunette

半圆补强板  half-sole

半圆车刀  turning gouge

半圆沉头螺栓  half round countersunk head bolt

半圆撑条  half round batten

半圆锄  Semi-circular spade

半圆粗锉  half-round coarse file; half round bastard file

半圆锉  half-round rasp; half round file; half-round file; pitsaw file; cabinet file