分层图象撕裂法 hierarchical method: 非层序法; 分段法tearing strength by tongue method: 单舌法撕破强力试验法tearing strength by trapezoid method: 梯形法撕破强力试验法ham hierarchical access method: 分层存取法hierarchical acce method: 分层存取法下载手机词典可随时随地查词查翻译