查询词典 average density

Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary- stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:1983); German version EN ISO

原油和液体或固体石油产品。密度或相对密度的测定。毛细管塞阻比重瓶法和带刻度双毛细菅比重瓶法

While Leaf of middle type variety LiaoDan 527 and thin density variety DanYu 39 would drop rapidly after tasseling stage, duration of larger leaf area was short. LAI increased along with the density increase. The increasing rate of LAI was bigest at jointing stage and droped at tasseling stage.

中间型品种辽单527和稀植品种丹玉39都是在抽雄以后就迅速下降，单株叶面积较大值维持时间较短；LAI随着密度的增加而增大，以拨节期-抽丝期增长速率最快，抽雄期以后开始下降。

Having measured the crosslink density of vulcanizes in the atmosphere and ammonia,the types of crosslink density of vulcanizes are analyzed.

对改性的纳米二氧化硅分别用红外光谱和XPS进行表征，测定大气和氨氛围下硫化胶的交联密度，研究硫化胶的物理交联密度和化学交联密度对力学性能的影响，结果发现，随着纳米二氧化硅填充量的增加，总交联密度增大，当纳米二氧化硅填充量大于1。

It shows that with the content increase of modified nano-silica in the butyl rubber, the portions of covalent bond interaction increases, overall crosslink density of vulcanizes increases, chemistry crosslink density of vulcanizes increases and reaches its maximum when the content is 2.0%, then followed by a slow decrease.

研究了纳米二氧化硅用量对硫化胶力学性能的影响，随着纳米二氧化硅填充量的增加，结合橡胶中共价键作用的贡献增加，硫化胶总交联密度增加，化学交联密度在填充量2.0%时增至最大然后缓慢降低。

This system which can do correlation analysis among vacuum arc imagine, light intensity spectrum density, electron density, vacuum arc voltage, vacuum arc current has a series of properties like synchronous exposure, high sampling speed, good quality with comparatively low price, strong functional software, friendly user's interface and so on.

本课题研制成功了真空电弧动态图象高速微机采集系统，该系统具有同步曝光、采样速度快，性能价格比高，软件功能强，用户界面好等特点，该系统可对瞬时的真空电弧形态，光强密度，电子密度，电弧电压，电弧电流进行相关分析。

The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.

研究结果表明：三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方&晶胞&构成； X ， Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状，也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素；当 X ， Y 和 Z 3个方向纤维束直径的比例关系一定时，不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同；复合材料的最终致密度一定；比渗透率随纤维束直径增大而略有增大。

In 1 irrigation time and 2 irrigation times treatments, soil salt content decreased by 11.7%, and soil salt content increased by 12.6% in 3-4 irrigation times treatments. 2 After irrigation, the mean reduction of soil bulk density was 6.5%, and the mean increment of soil total porosity was 18.1%. With the irrigation frequency increasing, soil density was decreased and soil total porosity was increased. 3 Soil infiltration course of reed field irrigated by wastewater fitted Horton infiltration model well. After wastewater irrigation, the first infiltration rate decreased, but the stable infiltration rate promoted with the wastewater irrigation frequency increasing. 4 Soil water-holding capacity was increased by wastewater irrigation. The maximum water-holding capacity in capillary was 90.15 mm in the treatment of irrigation 3 irrigations, and the maximum water-holding capacity in non-capillary was 4.15 mm in treatment of 4 irrigations.

废水灌溉后，土壤pH均值降低6.0%；废水灌溉1～2次，土壤含盐率降低11.7%，废水灌溉3～4次后，增壤含盐率增加12.6%。2）废水灌溉后土壤体积质量均值减小6.5%，总孔隙度均值增大18.1%；随着废水灌溉次数的增多，土壤体积质量和总孔隙度分别有减小和增大的趋势。3）Horton模型比较适合描述废水灌溉后芦苇群落的土壤入渗过程，废水灌溉降低了初渗率，但随着废水灌溉次数的增多，稳渗率增加明显。4）废水灌溉增强了土壤贮蓄水分的能力，废水灌溉3次吸持贮水量达到最高（90.15 mm），灌水4次滞留贮水量达到最高（4.51 mm）。

Treated fresh carnation cut flower and rose cut flower with salicylic acid of different density 20mgL^(-1 and 40mgL^(-1) and 60mgL^(-1) and 80mgL^(-1) and 100mgL^(-1), it was studied the influence and the value of moisture equilibrium of fresh heavy change rate for carnation. The result as follows:(1) The carnation cut flowers of tested with SA of different density, fresh weight presented drop after rising tendency.

用不同浓度的水杨酸20mgL^(-1、40mgL^(-1)、60mgL^(-1)、80mgL^(-1)、100mgL^(-1)作保鲜液来处理康乃馨切花，测定SA对康乃馨切花鲜重变化率的影响及水分平衡值的影响；结果如下：(1)不同浓度SA处理的康乃馨切花，鲜重都呈现先上升后下降的趋势。

There is a direct correlation between coffee density and the altitude that the coffee plant is growing at, with a higher altitude equaling a higher density.

海拔高度与咖啡密度也有直接的关系，海拔越高就意味着密度越高。

There is a direct correlation between coffee density and the altitude that the coffee plant is growing at, with a higher altitude equaling a higher density.

海拔高度与咖啡密度也有直接的关系，海拔越高就意味著密度越高。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。