data%log 的意思是什麼

data%log 英文

Deductive database is introduction to knowledge and inferring mechnism in artificial intelligece in traditional database. studying it needs very strict theory model as background. relation model and datalog model can describe world

演繹數據庫是人工智慧中的知識及其推理機制在傳統數據庫中的引入，對它的研究需要有非常嚴謹的理論模型為背景，它用關系模型（描述事實）和datalog模型（描述規則）來描述世界，演繹數據庫中主要採用一階謂詞邏輯表示。
The advanced companies abroad in this field are m / d totco of usa, datalog of canada and rigserv of british. domestic companies are shenkai company hi shanghai, xushui instrument factory of cnpc, the third instrument factory of cnpc and chongqing instrument factory of cnpc. on a whole, the instruments of both home and foreign made can be unproved in working principals and methods

有關鉆井參數儀表的研究開發，國外比較著名的是美國的馬丁（ m dtotco ）公司、加拿大的datalog公司和英國的瑞設（ rigserv ）公司，國內主要有上海神開科技工程公司、徐水物探儀器廠、第三石油儀表廠和重慶石油儀器廠等。