限燃層; 扼流; 表面覆層
Re·strict, v. t. [imp. & p. p. Restricted; p. pr. & vb. n. Restricting.] To restrain within bounds; to limit; to confine; as, to restrict worlds to a particular meaning; to restrict a patient to a certain diet.
Syn: -- To limit; bound; circumscribe; restrain; repress; curb; coerce.
adj : restricting the scope or freedom of action [syn: confining,
constraining, constrictive, limiting]