dust band 中文意思是什麼
dust band
解釋
（表的）防塵圈。-
With infrequent visits, comet kiess can ' t build up a broad dust band, and only generates a narrow trail of debris each time
由於琪斯彗星很少光臨，它無法形成一條寬闊的塵埃帶，而每次只能產生一條狹窄的由碎片組成的彗尾。 -
Laizhou guangyun machinery co., ltd. laizhou guangyun machinery co., ltd, an private enterprise which intergrates science, manufacture and trade. it covers an area of 10000m2, has 100 staffs. with advanced and exactitude exam equipments and modern management systerm, we specialized in manufacturing wood - working machine, such as log splitter, circular saw ls400, vertical log splitter, planer thicknesser and so on. the log splitter which model is 52cm, 37cm, and the force can be reached 4t, 5t, 6t ; cutting machine includes metal cutting band saw, marble cutting machine besides dust - collector, multi - function mixer, motor, shieding pressure - pump and so on. the product is sold all over the whole country, and exported to europe, america, east - north asia ect. most products have been certified successively by international safety seanclards which are european economic community ce, germany gs ect.
公司員工100餘人，佔地面積10000m2 ，擁有先進精密的製造檢測設備和現代化的科學管理制度，專業生產木工機械： ls - 370 ls - 520型號的劈木機400圓木鋸立式劈木機木工刨床等，切割機械：金屬帶鋸機理石切割機等，以及集塵器攪拌機電機屏蔽增壓泵等，產品遠銷全國各地並出口歐美東南亞等20多個國家和地區。 -
In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects
通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。 -
Now no. 1 boiler has been operating for sixteen months while the burner band goes normally and the dust carbon content decreases evidently
恢復后一號爐運行時間已有16月，衛燃帶未垮塌，飛灰含碳量有明顯下降。 -
Guodian anshun power plant no. 1 boiler burner band ' s collapse leads to the increase of dust carbon content and the decrease of boiler unit efficiency
安順電廠一號爐衛燃帶垮塌，飛灰含碳量升高，影響機組運行效率。
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