Twenty quires, or 480 sheets, of paper; sometimes 472, 500, or even 516 sheets.

一令纸(即二十刀或四百八十张,有时有四百七十二张, 五百或五百一十六张)。

A large quantity.

[~s] 大量的。

To enlarge (a hole) with reamer.

(以扩孔钻)扩大；(用铰刀等)铰大。