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1)  particle composition
颗粒组成
1.
The density, particle composition and water retention of fly ashes were also measured.
应用X 射线衍射(XRD)、扫描电子显微镜(SEM)、粒度分析和压力膜对浙江省8个火电厂粉煤灰的矿物学、形态、颗粒组成和持水性进行了研究。
2.
Samples of purple shale developed from Suining group(J_(3s))in Sichuan Basin were taken to study their cracking processes and particle composition,and the water-holding capacities and anti-scourabilities of their alluvial soil were analyzed.
以四川盆地遂宁组紫色页岩为研究对象,对其崩解破坏过程和颗粒组成特点进行研究,同时研究其坡积物的持水性和抗冲性。
3.
Through analysing particle composition of highsediment flow and concrete condition of channel in lower Yellow River, the author drew out the equation of sediment transportation capacity of high-sediment flow in channel of lower Yellow River, which could expound the influence of all kinds of factors on the sediment transportation capacity of channel and could provide basis for u.
本文通过对高含沙水流颗粒组成及下游河道具体条件的分析,得出下游河道高含沙水流输沙能力关系式,用以阐明各种因素对河道输沙能力的影响,为今后小浪底水库运用及下游减淤措施的规划提供一定依据。
2)  Grain composition
颗粒组成
1.
Fly ash grain composition,particle size distribution are the important process parameters that effect the molding of body stock of high content fly ash sintered porous product.
粉煤灰的颗粒组成、粒度分布是影响高掺量粉煤灰烧结空心制品坯料成型工艺的重要参数。
2.
Combined with the embankment fill test in Qingyin highway,the effect of soil grain composition and mineral component on CBR value was analyzed.
结合青银(青岛-银川)高速公路河北段土基填料试验,分析了土样的颗粒组成和矿物成分对CBR值的影响,提出了只有同时重视对填料进行矿物成分分析和颗粒组成分析,才能正确解释、评价填料的CBR值。
3.
A research about the influence of grain composition on the expansion capability has been done in this paper by the use of unilateral-restriction and trilateral-restriction methods, further more, a conception of efficient expansion relating to grain composition has been put forward.
本文采用单向限制和三向限制方法,研究了HCSA膨胀剂的颗粒组成对膨胀性能的影响,提出与颗粒组成相关的有效膨胀区概念。
3)  granulometric composition
颗粒组成
1.
The heterogeneous soil is composed of coarse and fine grained soils In this paper, the heterogeneous soil is compared with the coarse soil and clay soil on the granulometric composition and engineering piopesties It shows that the heterogeneous soil is different from coaise and dayeysoits and should be classified independentl
混合土料是由粗细土颗粒组成的土。
4)  particle size
颗粒组成
1.
Jiangxi Shangzhu china stone as raw materials is graded and numbered according to the particle size.
选取江西上祝瓷石作原料,按颗粒大小进行分级,并量化处理,经二次回归正交试验,设计安排试验,测量其多种工艺性能,最后应用回归技术建立其工艺性能与颗粒组成之间的定量关系的数学模型,并且应用数学方法将工艺原理对工艺性能的影响因素进行了分析讨论。
2.
Ningcun china stone as raw materials is graded and numbered according to the particle sizes.
选取江西宁村瓷石作原料,按颗粒大小分级并量化处理,通过二次回归正交试验,测其多种工艺性能,最后应用回归技术建立其工艺性能与颗粒组成之间的数学模型,分析讨论了其工艺原理对工艺性能的影响。
5)  particle component
颗粒组成
1.
In a small watershed of purple hilly area, Sichuan province, the erosion-sediment sections were marked out basing on differences of topographic and soil features, and the characteristics of soils particle component as well as its fractal dimensions were also studied on the routine analyzing results.
以四川紫色丘陵区小流域为例,根据地形部位及土壤性状划分出侵蚀沉积纵横断面,分析其侵蚀沉积特征,并采集土壤样品研究其颗粒组成和分形维数特征。
6)  soil particle composition
颗粒组成
1.
To understand the distribution pattern of salinity in soil profiles and factors influenced,soil samples were collected from irrigated areas of Yanqi basin and tested for total salinity and soil particle composition,and then the relationship between salinity and particle composition was studied using the Spearman rank correlation analysis.
为查明焉耆盆地土壤盐分剖面特征及其影响因素,进行土壤样本含盐量及颗粒组成测试,利用Spearman等级相关分析两者关系。
2.
The geostatistics were used for analyzing the spatial variability of the soil particle composition in Mengding tea plantation with two sampling scales at Sichuan province.
利用地统计学方法,在两个尺度下对蒙顶山茶园土壤颗粒组成的空间变异性进行了研究。
补充资料:颗粒性与颗粒度
      胶片上所记录的影像放大到一定程度时,会出现密度不均匀的颗粒状形态,这种颗粒形态在观察者视觉上的反应称为感光材料的颗粒性,它是一种主观的印象。对这种不均匀性的客观计量叫做颗粒度。
  
  颗粒度是感光胶片,特别是底片的一个非常重要的性能,它与影像质量的关系和噪声与声音质量的关系相似。因此,颗粒度被认为是光学信号传递中的噪声,也有人称之为"噪影"。颗粒大的胶片,不仅会使影像的结构粗糙损伤摄影艺术效果和降低影像质量,并且会象微弱的声音被淹没在噪声中一样,把大量的影像细部吞噬于变化无常的颗粒之中,使影像丧失质感。胶片的颗粒度对于电影画面与声音的技术质量有更为重要的影响,这是由于影片是在高倍率放大条件下观赏的,易产生粗粒的感觉;放映时,画面在不断地更迭,映现在银幕上的颗粒位置也随之不断变化。所造成的效果似布满画面上的小虫不断地在银幕上蠕动;更为严重时,表现为大小不同的黑白或彩色斑点,似沸水一样在银幕上翻腾。粗糙的颗粒会使声带在还音时,产生令人讨厌的杂音并使高频部分受到损失。
  
  胶片颗粒度的大小,不仅取决于溴化银晶体的平均尺寸,更主要的是取决于它们在乳剂层中的分布均匀度。人们所看到的颗粒现象并非单个的银粒或单个的染料,而是溴化银在乳剂层中分布不均匀造成的。银粒比较密集处,给人以黑块的感觉;银粒比较稀疏的部分,给人以空白的感觉。
  
  在发展过程中,曾出现过几种测量与表示颗粒度的方法。通用的公认比较好的方法是均方根颗粒度(RMS颗粒度)。这种方法是:将受测胶片用一系列不同曝光量均匀曝光,经显影后选取密度为1.0的样品,用测微密度计进行扫描测量,测量出1000个以上的数值后,算出所测密度的平均值,然后再算出每次测量与平均值之差,按照下式进行计算:
  式中d1,d2,...,dn为每次测得密度与平均密度的偏差值,n为测量的总次数。
  
  一般电影胶片的RMS颗粒度在5与15之间(最低为3.5,最高不超过20),数字越小,颗粒越细。有的高感光度黑白负片的颗粒度为15(颗粒较粗);彩色正片5254和黑白正片的颗粒度为 9;Ⅱ型彩色负片的颗粒度为5。
  
  乳剂中溴化银晶体的大小与颗粒度有直接的关系。一般地说,高感光度乳剂的颗粒要粗些,这是由于大晶体受光照射面大,显影后形成的密度也较高。显影条件对颗粒度也有一定的影响。显影液的成分、显影温度、显影γ值与密度以及加工过程中温度的变化、干燥条件等,都在不同程度上影响颗粒度。
  
  大多数黑白胶片的颗粒度随着密度的上升而增大,因此,曝光过度,对黑白影像的颗粒度有不良的影响。彩色胶片的颗粒度不随密度上升而加大,在高密度处其颗粒度反而有所下降。无论是黑白片或彩色片,它们的颗粒度都随显影γ值的提高而增大。
  

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