[dǐ bǎn]
baseboard; baseplate; footwall; [采矿] floor （位于矿脉下面的岩层， 亦称“底帮”、“底盘”或“下盘”） ; chassis base; flask board; header; [工] soleplate; solepiece; turning over board; [机] shoe; [电子] sole; [冶] bottom board; back plane; backboard; backing sheet; bay; bed plate; bottom plating; housing shoe; ledger; main base; mat; negative matrix; panel; seating; subplate; support plate; underplate