sand-grading 中文意思是什麼
sand-grading
解釋
砂粒級配-
The cyclones with short cone are used for crude grading of minerals with heavier specific gravity in gold mines, sand gold mir. es and sulphur ore mines and have such advantages as small ground occupation, high capacity, high operating flexibility, low energy consumption and high movability etc
短錐分選旋流器用於金礦、砂金礦、硫化礦等比重較大的礦物的粗選作業，具有佔地面積小，處理能力大，操作彈性大，能耗低，可移動性強等優點。 -
Test method for particle size analysis and sand shape grading of golf course putting green and sports field rootzone mixes
高爾夫球場鋪設綠呢和運動場草皮根層的粒度分析和沙形分級的試驗方法 -
Moreover, the main components of h mineral admixture is procured from industry waste, and its " production procedure is simple, so its " production cost is very low. the most tightness pile up theory and rheology is successfully applied in the designation of self - compacting concrete, and the factors such as sand rate, aggregate grading, paste content and mineral admixtures are been studied. under the guidance of mix design theory and on the basis of mass experiments, c20 - c80 high performance self - compacting concrete is been produced
將最緊密堆積原理和流變學原理相結合，運用於免振搗混凝土配合比設計之中，系統地研究了砂率、集料級配、水泥漿量、礦物摻合料等因素對免振搗混凝土物理力學性能、工作性能、耐久性能的影響，成功配製出從c20 - c80及以上強度等級的高性能免振搗混凝土。 -
The results of research work show that the values of sand rate, aggregate grading, paste content and mineral admixtures control the degree of tightness pile up and the workability of fresh concrete, furthermore, they determined the mechanics performance and the durability of self - compacting concrete
研究表明，砂率、集料級配、水泥漿量、礦物摻合料等因素的取值決定了免振搗混凝土的緊密堆積程度及新拌混凝土的工作性能，從而進一步決定了免振搗混凝土的物理力學性能及耐久性能。 -
Standard test method for particle size analysis and sand shape grading of golf course putting green and sports field rootzone mixes
高爾夫球場用綠呢和運動場草皮根層混合物的粒徑分析和沙形狀分級的標準試驗方法 -
This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。 -
2 ) to a certainty of sand percentage, concretes with moderate critical sand percentage which changed in about 36 % - 43 % were more sensitive to plastic shrinkage cracking than concretes with lower or higher sand percentage. 3 ) concrete made with lower strength grading cement was more prone to plastic shrinkage cracking than that of concrete made with higher strength grading cement
4 ）粉煤灰和硅灰對混凝土塑性收縮裂縫的影響與拌合物的實際水膠比有關，存在一個水膠比界限，在此界限之上，摻入粉煤灰或硅灰的混凝土較易開裂，在此界限之下，粉煤灰或硅灰高性能混凝土對塑性收縮裂縫具有抑制作用。 -
Plenty of contrast experiments have confirmed previous research conclusion is rightly. firstly according to the principle of reasonable grading, product has better performance when quartz sand mill to the 200 eye 0. 6 % and tailings mill to the 200 eye 1. 4 %
經過大量的對比實驗，證實了早先研究結論的正確，根據合理級配的原理確定出在石英砂細磨至200目篩餘0 . 6 、尾礦粗磨至200目篩餘1 . 4的條件下，製品具有較好的性能。 -
The primary conclusions can be drawn : the intercalation dimension estimate value and kolmogrov entropy of grading uniform degree sand - pile which present soc are larger than non - uniform sand - pile
得到初步結論：顆粒組成均勻的沙堆，吸引子關聯維數大於非均勻沙堆；擾動較大時，吸引子關聯維數也較大。
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