Conclusion: The astragalus plays role in immunological improvement and bidirectional regulation.结论: 黄芪有明显的免疫促进、向调节作用.The advent of HFC network infrastructure established the bidirectional basis of CATV network.HFC网络结构的出现...
Biolar shift registers are classified as unidirectional and bidirectional.双极型移位寄存器可分为单向和双向两种.He attempted to investigate bidirectional streaming by inoculating two dishes with R. oryzae.他试图研究双向流动的问题,他把未根霉接种于两个培养皿.There a...