垂直传播
vertical infection
equivalence test
vertical transmission
transmission
vertical tranmission
Mother to infant transmission
vertical propagation
spread horizontal
室内土工试验反复直剪强度试验
repeated direct shear test
适应性直方图蝶
adaptive histogram adjustment
受付国值机员直通电话业务
International Operator Direct Connection ( IODC ) Service
术中直接电刺激
intraoperative direct electrical cortex stimulation
术中直接电刺激术
intraoperative direct electrical stimulation