bottoming
輸出下限; 槽底找平; 打底
Bot·tom, v. t. [imp. & p. p. Bottomed (░); p. pr. & vb. n. Bottoming.]
1. To found or build upon; to fix upon as a support; -- followed by on or upon.
Action is supposed to be bottomed upon principle. --Atterbury.
Those false and deceiving grounds upon which many bottom their eternal state]. --South.
2. To furnish with a bottom; as, to bottom a chair.
3. To reach or get to the bottom of.