low grade material 中文意思是什麼
low grade material
解釋
低級別材料-
The high grade pavement has expericed three corse from flexible and rigid one to semi - rigidty quickly, even some low grade pavement takes the semi - rigity material as its base
高速公路路面經歷柔性路面和剛性路面，現在已向半剛性瀝青路面快速發展。目前甚至有些低級路面也採用半剛性材料做基層。 -
To import polar wood apmp key production equipment and, taking as raw material the triploid chinese white poplar, a pulse and paper making good variety of raw material emphatically populaized by the national " ninth five - year plan ", produced poplar wood apmp under an annual production capacity of 34 thousand tons as well as, taking as raw material the poplar wood apmp mixed with bleached wheat straw52 pulse, produce high - grade offest printing book and periodical paper double - offest printing paper and low - quantitative coated cloth paper under an annual production capacity of 51 thousand tons
項目內容：引進楊木apmp關鍵生產設備，以國家「九五」重點推廣的制漿造紙優良原料品種棗三倍體毛白楊為原料，生產楊木apmp ，年生產能力為3 . 4萬噸，並且用楊木apmp與漂白麥草漿配抄高檔膠印書刊紙雙膠紙紙定量塗布紙5 . 1萬元。 -
( 1 ) for the first time, compositing the chemical compounds of alkaline - earth metal with the adsorption material, 13x molecular sieve, silica gel, and activated alumina to gain a series of composite adsorbents with good performance that higher adsorption capacity and lower regeneration temperature and suitable for adsorption refrigeration systems that can be driven by low - grade thermal energy
首次將堿土金屬化合物及其鹽類與傳統吸附材料13x分子篩、硅膠和活性氧化鋁等復合，制取具有較高吸附量和較低再生溫度的適合於以低溫熱能驅動的吸附製冷過程的一系列優良復合吸附劑。分別在自製的吸附製冷、除濕製冷模擬實驗裝置上，測得該系列復合吸附劑與水和乙醇組成的吸附製冷工質對的吸附製冷性能以及除濕製冷性能均優于傳統吸附劑（ 13x ，硅膠和活性炭） 。 -
Secondly, making use of the road condition and date of different districts of hebei province, the main diseases of road are analyzed, and combined with the local climate, the factors that cause these diseases are analyzed too. this article discusses the factors, including the quality of asphalt and aggregate, gradation and bituminous quantity, effect on the performance of asphalt mixture. finally, through some new key technical index, including the high - temperature rut resistance, low - temperature crack resistance, and water stability of asphalt pavement, the material types, material grade and pavement structure have been put forward to be fit for asphalt pavements of every area of hebei province
其次，通過對全省各地市的路況、氣候等資料進行實地調查，利用收集上來的資料分析河北省的主要道路病害，並結合當地的氣候情況，分析病害的主要類型及特徵，找出病害的主導因素，並利用一些新的關鍵性指標（如試驗方法、評定指標等）來分析瀝青路面的高溫抗車轍性、低溫抗裂性和水穩定性等瀝青結合料和瀝青混合料的相關路用性能。 -
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。 -
The company introduces the germany advanced production equipment, mainly produces each kind of shoes clothing material, spins adhesive the adhesive - bonded cloth, the two - sided lining, has spins the cloth agglutination lining, the adhesive - bonded cloth lining, the black carbon lining, a thick liquid lining, the pair of spot lining, the waist lining, the acupuncture cotton and kapok, the shoulder pad, the collar is low, the tension lining and each kind high, in the middle - grade shoes clothing the lining and so on
公司引進德國先進的生產設備，主要生產各種鞋服材料，紡粘法無紡布雙面襯有紡布粘合襯無紡布襯黑碳襯漿點襯雙點襯腰襯針刺棉墊肩領低呢彈力襯及各種高中檔鞋服里襯等。 -
The study solves engineering problem as follows : ( 1 ) the systematic study on the historical course of xigeda strata deposit and geologic environment includes strata, lithologic characters and constitution et in the liangshan and panzhihua region. the results show that the xichang - panzhihua express way is controlled by the anninghe fault and the xigeda fault, the earthquake frequently happen in the region of pass, the different sedimentation number is more great, they effect the road building, safety in operation and structure belong road ( 2 ) because in some place the xigeda strata is foundation and roadbed, the study on the basic properties of the xigeda strata include density, moisture content plastic and liquid limit graduation. the results show that the xigeda strata is deposition in lake, the main component is mudstone and sandstone, the fine particle is main, it has some viscosity, the moisture content of mudstone is different the it of sandstone, the other property are likeness. the xigeda strata has no dilatation on total, some claystone have low and medium dilatation ; ( 3 ) the study on the basic properties of xigeda filler include the composition of matter the biggest standard dry density, the optimum moisture content the results show that xigeda filler can use as road material, it is well grade filler and admixture filler on essence, its compaction index should change in different place because the property is controlled by mudstone and sandstone that change is great in different place ; ( 4 ) the study on the xigeda filler craft used as express way roadbed, includes suitable thickness, compaction numbers and methods and equipment choice et
公路沿線廣泛分佈有昔格達地層，昔格達地層能否用作高速公路路基填料，國內沒有先例，本論文就是結合導師的科研項目，在非典期間，現場長達5個月的工作，完成了從試驗、現場施工工藝到路堤分層沉降監測等工作，是面對生產實際，認識昔格達地層的性質和其作為地基、路基和填料應用中面臨的問題進行的研究。主要的研究內容有：對攀西地區地層巖性、構造等地質環境和昔格達地層的沉積歷史過程作了系統的分析，研究表明西攀高速公路主要受安寧河斷裂和昔格達斷裂影響，通過地區地震活動頻繁，差異沉降較大，對公路建設、安全運行和沿線構築物設計有較大影響；由於昔格達地層在有些路段作為地基、有些作為路基，對其基本性質進行了研究：包括天然密度、含水量、塑液限、顆粒級配等指標的試驗研究。研究成果表明：昔格達地層為湖相沉積，主要為砂巖和泥巖，它以細粒組為主，同時粘粒的存在，使其具有一定粘性。 -
Based on the study on ree distribution characteristics of sinian low grade metamorphic rocks of the basement and cover volcanics, the author makes a discussion on the material source and the genesis of xiangshan volcanics, and suggests that xiangshan volcanics came mostly from the remelting of the upper crust, and the genesis should be attributed to the category of remelted granites
摘要本文通過對相山火山盆地基底震旦系淺變質巖、蓋層火山巖稀土元素分佈特徵的研究，探討相山火山巖的物質來源及巖石成因，認為相山火山巖主要是上部地殼重熔的產物，其巖石成因應屬于重熔型花崗巖的?疇。 -
Development of a new type of green masonry material by using low grade fly - ash
用低等級粉煤灰研製新型綠色墻體材料 -
Abstract : effects of mixed re metals on the properties of low oxygen cleaned round copper rods manufactered by continuous casting and rolling were studied. it shows that trace re elements improve not only the elongation of the rods significantly but also the conductivity, meanwhile, reducing the oxygen contents in the material. in consequence, the product grade is raised from grade 2 to grade 1, and the final products are improved to higher - grade
文摘:研究了混合稀土金屬對連鑄連軋生產的低氧光亮圓銅桿性能的影響.結果表明，添加微量稀土元素不僅能明顯提高材料的延伸率，而且還提高了其導電性能，同時降低了材料中的氧含量，性能指標從原來的2級品上升為1級品，從而提高了最終產品的檔次
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