內壁; 內襯牆
Inwall \In*wall"\, v. t. [imp. & p. p. {Inwalled}; p. pr. & vb.
n. {Inwalling}.]
To inclose or fortify as with a wall. --Spenser.
Inwall \In"wall`\, n.
An inner wall; specifically (Metal.), the inner wall, or
lining, of a blast furnace.