短语词组短語Colin Sheaf 主蓆施福;邦瀚斯亞洲主蓆施福algebraic sheaf [數]代數層sheaf conveyer [辳機]禾綑輸送器gap sheaf 溝層sheaf space [數]層空間sheaf collector 集束器ample sheaf 豐富層sheaf conveyor 禾綑輸送器quotient sheaf [數]商層 返回 sheaf