secondary center of origin
【机】 测心矩
center square
暂无补充释义。
center square
暂无补充释义。
secondary center of origin
message center
primary ossification center, diaphysis ossification center
CDRH(Center for Devicesand Radiological Health)
receive channel center frequency【通信】
low-level center
off-center display【雷达】
center-of-mass coordinate