所制备的碳纤维呈现象牙棒状，顺着等离子体炬的方向生长。
The resultS show that ivory-like carbon fibers grow in the direction of plasma torch.
退化铁素体是由棒状的亚单元组成，每个亚单元的直径约为1 - 2微米，长度为几微米。
The degenerate ferrite consists of rod-like subunits, each several micron in length and 1-2 micron in diameter.
目的：构建弓形虫棒状体蛋白（ROP2 ）基因重组质粒并在大肠杆菌中表达，用于筛选弓形虫新的诊断抗原和疫苗分子。
Objective:To construct a recombinant plasmid containing rhoptry protein 2(ROP2)gene of Toxoplasma gondii and express it in E. coli for selection of diagnostic antigen and vaccine candidate.
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