Methods Multi-central randomized blind controlled trials were used, and 180 cases were randomly divided into a rolling needle group and a medication group, 90 cases in each group.
方法：采用多中心随机盲法对照试验，180名患者随机分成滚针组和药物组各90例。
The multi-directional braided C/C composite reveals strong anisotropy, and impact toughness of the needle punching C/C composite is superior to that of the whole felt C/C composite.
编织C/C复合材料的抗冲击性能表现出强烈的各向异性，针刺C/C复合材料抗冲击性能优于毡基C/C复合材料。
Objective: To enhance the efficiency of the multi-needle-assisted transformation of soybean Glycine Max l.
目的：提高复合针介导的大豆遗传转化效率。
Objective: To enhance the efficiency of the multi-needle-assisted transformation of soybean Glycine Max l.
目的：提高复合针介导的大豆遗传转化效率。
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