salt cement 中文意思是什麼
salt cement
解釋
含鹽水泥-
Chemical industry information not merely embodyed the ordinary chemistry information substance, chemistry manufacture technological process and representative installation introduction are still have, in case contacing legal institutions sulphuric acid ? nitric acid industry system law ( ammonia oxidate law ), synthetic ammonia industry, chlorine and caustic soda are manufacture to electrolysis salt water, along with electrogilding, refine aluminium, iron - smelting and steel - smelting, cement and glass manufacture summarized account, the mineral oil is refined, hence, the chemical industry information education is contrastd against the ordinary chemistry information education, proper such representative means, be living, the means interpreted is in speech oridinarily wholly adoptd in the chemical industry information education, now most of tutors also is adopt the means interpreted in speech, cause that the chemical industry information education is insipid like this, student lack interest to chemical industry information study, but as a result of value the pair foundation, light practice, student may say the become a mere formality to chemical industry information study o since multi - med
化工知識不僅包含了一般化學知識的內容，還帶有化學生產工藝流程及典型設備的介紹，如接觸法制硫酸，硝酸的工業製法（氨氧化法） ，合成氨工業，電解食鹽水製造氯氣和燒堿，以及電鍍、煉鋁、煉鐵和煉鋼，水泥和玻璃的生產簡介，石油的煉制等，因此，化工知識教學與一般化學知識教學相比，應有其典型的方法。在過去，化工知識的教學一般都採用口頭講解的方法，現在大多數教師也是採用口頭講解的方法，這樣使得化工知識的教學乏味，學生對化工知識的學習缺乏興趣，又因重視雙基，輕實踐，學生對化工知識的學習可以說流於形式。由於多媒體的輔助教學的高效性、形象直觀性、新穎性和多樣性、人工模擬等特點，很適合化工知識的教學，應用多媒體教學化工知識可以解決目前存在的諸多問題，如：模型短缺、組織參觀活動困難、教育經費不足、學生不易觀察等。 -
This paper according to related survey and experiment data, analyses some factors of frost and salt resistance based on the cement damage of concrete pavement of frost resistance mechanism, which may effect on the northeast area highway cement frost resistance of concrete pavement, then raises major measure of frost and ask resistance on cement concrete pavement based on the result of large quantities freeze and melt circulating experiment
摘要根據現場調查及相關試驗數據，從水泥混凝土路面抗凍性破壞機理出發，分析了冬季除冰鹽對東北地區高速公路水泥混凝土路面抗凍性能的影響，提出了影響水泥混凝土路面抗鹽凍性能的主要因素，並根據實驗室內大量凍融循環試驗的結果，提出了提高水泥混凝土路面抗鹽凍性能的主要措施。 -
Study on enhancing strength of cement by adding marine salt gypsum and the forecasting models
添加海鹽石膏對水泥增強研究及預測模型 -
The human source includes emissions from motor vehicles and industrial processes, e. g., power stations, fugitive dust from cement works, construction and demolition activities. the natural source includes soil, salt and pollens
空氣中總懸浮粒子有兩大來源，人為的來源包括車輛廢氣發電廠排出的廢氣以及在製造水泥或建築工程中產生的塵埃，而天然的來源包括泥土鹽及花粉等等。 -
This paper which is based on these facts that in qinhuangdao the surface layer of cement concrete pavements have been loosed and destroyed because of snowfall and splashing salt in winter analyzed the causes deeply. the causes include physics factors, chemistry factors and construction factors that are caused by defects of our conventional construction
本文根據秦皇島市水泥混凝土路面由於冬季降雪、噴灑除冰鹽而引起的表層鬆散破壞的現狀，從物理、化學及傳統的施工工藝不足等因素，進行了理論分析，以此來確定水泥混凝土路面表層鬆散是否需要補強或功能性養護。
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