短语词组短语SW softwood 软木;针叶树;针叶木的缩略语Northern Softwood 北方软木softwood board [木]软材板Canadian Softwood 加拿大针叶材softwood plank 针叶材的厚板softwood grafting 软材嫁接softwood strip 针叶材板条etiolated softwood 黄化嫩枝Sawn softwood 锯材 返回 softwood