[名词解释] epidermal growth factor, EGF (表皮生长因子)

简述海事证据保全应当具备的条件。 growth factor receptor-bound protein 2 (Grb2蛋白) Ras protein (Ras蛋白) SH domain (SH结构域) 司法协助 epidermal growth factor, EGF (表皮生长因子)