短语词组短語inside sapwood [木]內含邊材false sapwood 邊材腐朽病bright sapwood 原色邊材sapwood thickness 邊材厚度sapwood stain 邊材變色sapwood area 邊材麪積sapwood percent 邊材百分率sapwood rot 邊材腐爛sapwood forest 邊材樹 返回 sapwood