Considering the various aspects of primitive paddy field such as environment, tools, irrigation installation and so on, the paper mainly demonstrates that irrigation works at the earliest originate from southern primitive paddy field area in the middle Ne
详情正文
登录后查看完整内容
使用 DeepEvidence / 梅斯账号登录，新用户可在登录页面注册。
登录 / 注册登录成功后将返回当前页面，继续浏览。