rough order-of-magnitude estimate (An estimate done without detailed costing, or based on initial or incomplete data. It estimates the general size and scope of a project); rough order-of-magnitude estimate (An estimate done without detailed costing, or based on initial or incomplete data. It estimates the general size and scope of a project. Rori)

心理学

gross score

技术

coarse estimate

数学

rough bound; crude estimate

经济

crude estimation; eye estimate; rough estimates; rough estimation

美国人, 非正式的

ball park

铝业

order of magnitude (E_Mart)