Your family can apply for an F-2 (dependant) visa.
你的家属可以申请f - 2(家属)签证。
2
In this paper, the self-made dispersant F-2, organic slow dilution agent, early strength agent and activator are sieved by MTC composition.
本文选用自制的分散剂f - 2，有机缓凝剂，早强剂及激活剂进行了大量的MTC配方筛选。
3
During logarithmic phase of cultivated ovary granulose cell, experiments were carried out to investigate the genetically procreation toxicity of F-2 toxin and the detoxification of V-E.