substantial in content meaning in English

内容翔实

Seeing is believing . historical photographs are often more substantial in content than depiction by words
所谓百闻不如一见，有时文字描述，还不及一帧历史照片所蕴藏的丰富内容。
Substantial in content , the elaboration full subject card may elect for the essence , also may in choose the essence in the foundation other to reward ; may give the reward regarding the content integrity 原创 card according to the card quality ; pastes regarding the content quite good extension may act according to the card situation , gives the reward
内容充实、论述充分的主题帖子可以选为精华，也可以在选精华的基础上另外奖励；对于内容完整的原创帖子可以根据帖子的质量给予奖励；对于内容比较好的转贴可以根据帖子情况，给予奖励。