伞形天线
umbrella antenna
扫描天线
scanning antenna
扫描天线座
scanning-antenna mount
扇射束天线
fanned-beam antenna
扇形天线
fan antenna; harp antenna
社区天线电视
community antenna television
热电子三极管
hot-electron triode
热力学第三定律
third law of thermodynamics
人参三七
Panax pseudo-ginseng Wall.
妊娠末三月
third trimester of pregnancy
妊娠首三月
first trimester of pregnancy
妊娠中三月
second trimester of pregnancy
日发三日疟
triple quartan
日上三竿
late in the morning
融合三棱器
verger prism
肉豆蔻基三甲基硅
myristyl-trimethylsilicane
入木三分
keen; penetrating; profound
软木三萜酮
friedelin
锐角三角形
acute triangle; acute-angled triangle
卅三醇
psyllic alcohol