n.去心器；挖核器
A doohickey is an apple corer, peeler and slicer. 这是个集去苹果心、削皮和切片为一体的小装置。
Few homes truly need a juicer, or an apple corer, or an ice cream maker. 你能省多少钱完全取决于你能多到位的实行这些点子。
LL: This doohickey is one of the greatest inventions of all time. It is an apple corer, peeler and slicer. 这玩艺儿既能削皮，挖掉苹果的核还能把苹果切成片，有这么多功能呀。怪不得你说它是最伟大的发明之一。
This paper mainly introduces the design,the basic operating principle and its performance of a vibration piston corer. 本文主要介绍了振动活塞取样钻具的设计指导思想及其工作原理和性能特点。
The rate of slab with longitudinal corer cracks is decreased from 2.77% to 0.09% with the effectual measures. 对其采取有效措施后，使板坯的偏离角纵裂纹发生率由2.
n.(竞赛等的)记分员；记录员；得分者
