粉筆灰 的英文怎麼說
中文拼音 [fěnbǐhuī]
粉筆灰
英文
chalk tray-
Apply with chemical combination technology. it form nonadhesive film. which can ' t adhibit dust easily. and pollution is easy to clearly to chalk
應用化合架橋技術形成非粘著性塗膜,不易粘上灰塵。對粉筆、蠟筆等所沾上的污漬也特容易清洗。After the horseplay by the wicked students, the classroom floor was strewn with crumbled chalk dust
那班頑皮學生鬧著玩兒,捏碎不少粉筆,過后,教室地板上撒滿了粉筆灰。Abstract : the approach for the design and the beharvioural mechanisms of reinforced soil sructures are presented in this paper. the limit state approach and aspects of partial factors for the design of geosynthetic reinforced soil structures are described emphatically. application of the method for the design of a certain wall of flyash reinforced by geosynthetics, and the characteristic values and partial factors are discussed. this documentation is directly towards researchers and practionaires, and gives guidance for future research and development of codes for reinforced soil wall
文摘:筆者介紹了加筋土的加固機理及設計方法,重點闡述了合成材料加筋土的極限狀態設計方法的概念及分項修正系數,在一合成材料粉煤灰加筋土高支檔的設計及驗算中引入了分項修正系數,並對其主要設計指標確定進行了分析.本文對從事這一領域研究和工作的人員,以及今後規范的修訂具有參考價值
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