sharpener

n.

卷笔刀；磨床；磨器；磨具

复数：sharpeners

pencil sharpener卷笔刀

1. Nobody else has a pencil sharpener.
   再没有谁有卷笔刀了。
2. The boy is sharpening his pencils with a sharpener.
   那男孩正在用卷笔刀削铅笔。

SHARPENER
Knife sharpener
Portable blade sharpener
An air-driven micropipette sharpener
High-resolution urban thermal sharpener (HUTS)
Edge-sharpener: recovering sharp features in triangulations of non-adaptively re-meshed surfaces
Rabbit lateral geniculate nucleus: sharpener of directional information.
A high鈥恦oltage, short鈥恟isetime pulse generator based on a ferrite pulse sharpener
A fully distributed heterostructure-barrier varactor nonlinear transmission-line frequency multiplier and pulse sharpener
Formation of Short Pulses with a Subnanosecond Rise Time and a Peak Power of Up to 1 GW by a Semiconductor Avalanche Sharpener