vt. 缚紧, 收紧

[化] 荧光漂白恢复

Frap \Frap\, v. t. [imp. & p. p. {Frapped}; p. pr. & vb. n.
{Frapping}.] [Cf. F. frapper to strike, to seize ropes. Cf.
{Affrap}.]
1. (Naut.) To draw together; to bind with a view to secure
and strengthen, as a vessel by passing cables around it;
to tighten; as a tackle by drawing the lines together.
--Tottem.

2. To brace by drawing together, as the cords of a drum.
--Knoght.