先趋块

【计】 predecessor block

先的英语翻译：

ancestor; before; deceased; earlier; in advance
【医】 fore-

趋的英语翻译：

hasten; hurry; tend to become; tend towards

块的英语翻译：

lump; agglomeration; clump; dollop; loaf
【计】 B; block
【医】 block; lump; mass; massa