什么是深度——厚底？

c 墙体或其槽口深度标志尺寸 co-ordinating thickness between opening and frame of window and door c1 墙体或其槽口深度构造尺寸 depth of structural reveal and rebate c2 门窗框厚度构造尺寸 window and door frame thickness ƒ 门窗扇与门窗框间槽口的深度标志尺寸 co-ordinating depth between ftame and leaf of window and door ƒ2 门窗框槽口的深度构造尺寸 window and door frame reverl rebate depth ƒ3 门窗扇槽口深度 window and door leaf reveal rebate depth 门窗扇厚度（在门窗框内） thickness of window and door leaf(inside window and door frame) ƒ＇3 门窗扇厚度（包括企口凸边） window and door leaf thickness overall lipping 门窗及洞口的深度尺寸代号图示见图73。