double openerとは 意味・読み方・使い方

To provide a can opener which is simple in structure and easily accommodative to cans having different thickness at a double-seamed part to be cut with cutting-in and opening made simply and certainly, and is easily handled by any one for quick and stabilized opening of the can.例文帳に追加

切り込みと解放が簡単かつ確実にでき、切断する２重巻締め部の厚みの異なる缶への対応も容易で、機構も簡素化できるとともに、だれでも安定して迅速に缶切り作業ができる缶切り装置を提供すること。 - 特許庁