段略字元 的英文怎麼說
中文拼音 [duànlüèzìyuán]
段略字元
英文
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3, taking the " digital house property ( dhp ) " as the example, the paper has a try on the technical methods in semantic sharing of gis. this paper, combined he construction emphasis of sharing platform in dhp, explores the essence of semantic share of gis and its realizing strategies. three aspects are emphasized here : ( 1 ) integration of msds database based on the sharing platform of gis ; ( 2 ) share of metafile under different gis platforms with the semantic standards of sharing metafile ; ( 3 ) auto or half - auto building of spatial relationships according to rule and knowledge databases
3 、以「數字房產」的建設為例從技術手段對實現gis語義的共享進行了實踐，論文結合「數字房產」共享平臺的建設重點對gis語義共享的實質及其實現策略進行探索，重點做以下三方面內容的研究：門）通過建立gis共享平臺實現對多源空間異構數據庫的整合； （ 2 ）通過共享圖元語義標準，實現不同gis平臺下的圖元共享； （ 3 ）通過規則庫和知識庫實現空間關系的自動半自動生成。According to the modern education theory, we should adopt the following tactics in teaching the concept of chemistry : 1. use the vivid visual image to let the students gain the knowledge of the concept ; 2. create the atmosphere and let the students take part in the formation of the concept of chemistry ; 3. revise the old knowledge while learning the new one to realize the assimilation of concept ; 4. proceed step by step, lead the students deepen and develop the concept ; 5. give prominence to the understanding of the key words of the concept, get deeper understanding ; 6. pay attention to the relation between the concepts ; 7. optimize the study strategy and enhance the cognition standard, i. e. in the teaching of the concept of chemistry, we must pay great attention to the usage of various kinds of teaching method, including visual experiment, visual language and cai courseware, in order to help the students to understand the concept ; use the question to stimulate students " thoughts, give free rein to students " corpus, and let the students take part in the teaching process actively ; guide the students to remember new concepts and the help of their old knowledge ; pay attention to the levels of the concept, deepen and develop the concept continuously, use various ways to strengthen the meaning of the key words, help the students to master the concepts connotation, and give a clear extension, guide the students to found the concept system
也就是說，在化學概念的教學中，要注意充分運用各種直觀教學手段，包括實驗直觀、語言直觀和cai課件直觀，幫助學生理解概念；注意運用問題啟動學生思維，發揮學生的主體性，使學生積極參與教學過程；要指導學生利用原有認知結構中適當的概念圖式來學習新概念；注意概念教學的層次性，不斷深化和發展概念；注意通過各種方式強化概念中關鍵字、詞的意義，幫助學生準確把握概念的內涵，清晰界定概念的外延；注意引導學生在應用中建立概念系統，形成合理的概念結構。同時在概念教學中還要注重學習方法的傳授和學習策略的形成，進行適當的元認知訓練，優化學生的學習策略，提高其元認知水平。根據化學概念的教學策略，化學概念的基本教學程序為:創設問題情境，引入概念;組織問題解決，建立概念;引導知識整理，概念系統化;指導練習應用，概念具體化。
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