average density
英 [ˈævərɪdʒ ˈdensəti]
美 [ˈævərɪdʒ ˈdensəti]
网络 平均密度
双语例句
- Admittedly, at an average density of 100-1,000 molecules per cubic centimetre ( compared with 100 billion billion in air at sea level), it is a pretty thin gas.
诚然，分子平均密度10^2-10^3/cm^3的气体非常稀薄（海平面处是10^26/cm^3）。 - The results show that the bulk average density by electric resistance sintering is higher than that by median frequency sintering.
研究结果表明，电阻烧结坯整体平均密度要高于中频烧结坯密度。 - A hybrid algorithm for computing cannonball dispersion evenness Calculation of lightning average density in the Lightning risk assessment
求解弹头散布均匀度的分布估计算法雷击风险评估中雷击大地年平均密度的计算 - The maximum occurrence of the adult of C.septempunctata and H.axyridis was in the early mid-August and the late August, with an average density of0.82 and1.3 per plant, respectively.
主要捕食性天敌七星瓢虫、异色瓢虫成虫发生高峰期分别在8月中上旬和8月下旬，平均每株虫量七星瓢虫0.82头、异色瓢虫1.3头。 - Calculation of lightning average density in the Lightning risk assessment
雷击风险评估中雷击大地年平均密度的计算 - Average density of major pollutants in Fuxin City, Liaoning Province was calculated by establishing an air pollution density model based on classification of atmospheric pollution source.
通过对阜新市的大气污染源的分类建立了大气污染的浓度模型，给出了主要污染物的平均污染浓度的计算结果； - Based on the assumption about the atomic boundary conditions and the calculation method of covalent election average density on the crystal face, the electron density of those crystal faces on which atoms arrange more intensively is analyzed and calculated by employing EET ( empirical electron theory).
按程氏理论中关于原子边界条件的设想，根据晶面平均共价电子密度（简称电子密度）的计算方法，运用余氏理论对奥氏体和马氏体原子排列较密集晶面的电子密度进行分析和计算。 - Principles for calculation the global and average density of state of the tiling were given.
研究了Penrosetiling的局部、整体和平均电子状态密度。 - The computations of models of normal formation pressure for three sags have been finished separately by logging density and average density, forming a set of predicting methods for formation pressure characterized by advanced technology, easy to operation and good practicality.
分别用测井密度、平均密度方法完成了三个凹陷区的正常地层压力模型计算；形成一套技术先进、易于操作、实用性强的地层压力预测方法。 - The diffusing regularity of Ceroplastes japonicus ′ s 1~ ( st) instar nympha was studied by fuzzy cluster analysis, using average density, aggregation index and the ratio of quadrats with worms as cluster factors.
以平均密度、聚集度指标（mm）和有虫样方比率为聚类因子，对日本龟蜡蚧1龄若虫的扩散规律进行了模糊聚类分析。 - The Iwao method is also used to determine the regression equation between average crowding degree and average density; analyze and calculate the optimal sampling quantity for forest survey;
并用Iwao法确定平均拥挤度（m）与平均密度（x）的回归方程，分析并计算了林间调查的最佳抽样数，列出序贯抽样表。 - The average density is 688 ind.
平均密度688个／L。 - Applying the probabilistic method, the average density, the average depth and the deepest depth of pitting are calculated.
运用概率统计方法，计算了点蚀平均密度、点蚀平均深度和最大点蚀深度。 - In this paper, the three methods were applied to estimate the average density of stem wood and bark, and the differences of the density in different positions of a tree and in different age class were analyzed with dummy variable method.
本文对这三种平均密度估计方法的结果进行了比较分析，并用哑变量方法对树干不同部位、不同龄组之间密度的差异性进行了检验。 - Measure the average density and pile up density of different kinds of biomass and research the law that density influences material of quantity;
测量了不同种类生物质的平均密度及堆积密度并研究其对输料量的影响； - This paper is concentrated on the study of mechanical and physical behaviour of PF-MDF influenced by the main processing parameters such as glue content, mat moisture content, conditions of hot pressing and average density of the board.
本文对PF-MDF制造工艺中PF胶的用量，热压前板坯含水率、热压参数和板材平均密度的变化对产品性能的影响作了研究。 - Results: The average density of mouse was 10 percent no matter which was indoor or outdoor.
结果：室外和室内平均鼠密度为10.0%。 - There were 63 species of zooplankton. The average density and biomass of zooplankton were 1391.63 ind.
浮游动物共有63种，平均个体密度为1392ind./L，原生动物和轮虫在数量上占绝对优势； - The average density declined rate achieved 98.8%.
平均密度下降率达98.8%； - Same average density can be used to estimate stem dry weight of the same species of trees.
据此，在利用材积密度法估计树干干重时，相同树种不同个体可以采用统一的平均密度值。 - The average biomass and average density are 74.26 g/ m~ 2 and 340 ind/ m~ 2 respectively, of which mollusks and others occupy 43 percent and 39 percent of total biomass, 66 percent and 30 percent of total density respectively.
平均生物量和平均栖息密度分别为74.26g/m2和340个/m2，软体动物和其它类动物分别占总生物量的43%和39%，它们的栖息密度分别占动物总栖息密度的66%和30%。 - When dealing with the grid size and density threshold, most currently available algorithms are based on the total number of data points, the average density and other statistics. They use an empirical formula to obtain these two parameters.
现有算法在处理网格粒度和密度阈值时，多数是根据数据点总数以及平均密度等统计量，利用一个经验公式求得这两个参数，比较简单化。 - We obtain the optical constants of the different etched ratio with the average density method and get the bandwidth of the multilayer and lamellar grating with recursion method. The results show the spectral resolution is improved after the multilayer has been etched into lamellar grating.
用平均密度法确定不同刻蚀情况下材料的光学常数，用递推方法计算了多层膜光栅和常规多层膜带宽的性能，结果表明多层膜光栅的光谱分辨率比常规多层膜有一定的提高。 - The average density of soil organic carbon of different forest types decreased with the depth of soil.
不同森林类型土壤有机碳平均密度均随土壤深度的增加而降低。 - The avian average density in the area was 18.72 individual/ hm~ 2.
景区鸟类平均密度为18.72只/hm~2。 - Meanwhile, we also study the effect of location of disaster happened on evacuation time and average density.
同时，研究教学楼层内灾难点发生的位置对疏散时间、平均密度的影响。 - Meanwhile, the impacts of different exits and four different internal layouts on the evacuation time, average density are investigated.
同时，研究了不同的出口条件以及不同的内部布局对疏散效率的影响。