查询词典 bulk density

The backbone bonds ale randomly oriented in the interior and markedly oriented along the film plane near the free surfaces:the onset of order corresponds roughly with the drop in the mass density from its bulk value.

主链键在内部随机取向，在自由表面附近则明显沿薄膜表面平面取向，键开始有序取向的程度大致与质量密度相对于本体密度的减小一致。

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐渐增高，最终显著高于常规耕作模式。2.2耕作模式对土壤水分的影响 0~20cm土层旋耕、耙耕和免耕模式土壤贮水量与同期降雨量显著正相关，相关系数皆大于常规耕作模式，耙耕相关系数为0.70**，达到极显著水平，土壤保水性好于常规耕作模式。

Bulk power system reliability assessment using Monte Carlo simulation and probability density estimation.

大电力系统可靠性评估的蒙特卡洛仿真及概率密度估计。

No-tillage field was compacted from 1 to 10 times with 4GG-170 reaping machine and Xinjiang-2 combine harvester. Soil bulk density and soil stiffness with the increase of reaping machine stepped times were measured.

用4GG-170型收割机和新疆－2号联合收割机在免耕麦茬地上压地1~10次，测定土壤容重和土壤硬度随碾压次数的变化情况。

As in the freshly mixed mortar, EPS particle is not affined with cement paste and has a low bulk density, which will be apt to make EPS particle buoy, and lead to the segregation of mortar, the decrease of water retentivity and affect its workability.

在新拌砂浆中，由于EPS颗粒与水泥浆体之间不亲合，且容重很小，所以在搅拌过程中很容易造成EPS颗粒"上浮"，从而导致砂浆分层，保水性下降，严重影响其和易性与施工性能。

In this paper, as a case of Karamay, we have studied on space-time changement of soil quality in oasis of arid area. We measured quality for different land use types and years in same type by combinativing field sampling for Karamay in Xinjiang and analysis in laboratory, which is directed by former theory of soil quality. Then we did integrated evaluation of soil quality for different land use types, and had drew some conclusions as followed: In four land use types, the soil bulk density of layers(0～15cm) for farmland and tree land is bigger than the other land use types.The organic matter of every layer in manpower Tamarix Bulrush land is bigger; organic matter of Tamarix Bulrush land release efficiency nitrogen which result ration of C/N is higher; total nitrogen of all layers in farmland variety great as being effected by mass use of nitrogen in agriculture; deadwood and defoliation of tree、shrub and bulrush pooled in 5cm layer to result that quick nitrogen is the biggest among all layers. The total salt of nature shrub tree land for every layer being bigger than farmland explain that nature shrub thee land strongly stand salt and farmland for basification in this area; that the nutrient of face layer is bigger than the ground layer may be explained by that vegetation gather nutrient to be stored in deadwood and defoliation.

本文对以克拉玛依为例，对干旱区绿洲土壤质量的时间空间变化进行研究，在有关土壤质量的研究理论指导下，通过田间调查取样和室内分析相结合的方法，对新疆克拉玛依市农业开发区的不同土地利用方式及同一土地利用方式下不同利用年限土样土壤理化性质进行测定，从而对新垦绿洲不同土地利用类型土壤质量进行综合评价，结果如下：四种土地利用方式中，农地、乔木林地表层(0-15cm)土壤容重较大；各土层人工柽柳芦苇地的土壤有机质含量均较大；柽柳芦苇地的有机质在矿化过程中所释放出有效氮，导致柽柳芦苇地的C/N比例较高；受到农业耕作使用大量氮肥的影响，农地各土层全氮含量变异较明显；乔木、灌木及芦苇的枯枝落叶主要集中在5cm范围之内，导致几种土地利用方式类型下该层土壤速效氮最大；天然灌木林地的土壤总盐在各层均较大，其次是农地，说明天然灌木林地的高耐盐能力，以及该区农业生产用地的土壤盐碱化程度较重。

The significance of this work is to reduce transportation cost in the way of changing bulk density of the finally configuration of the product by applying secondary molding process on powder.

挤出滚圆技术对防腐剂产造粒的意义在于，对于某些粉体进行2次成型加工，可以显著改变产品的堆密度，其对于产品运输成本的降低有一定意义。

It is a very important subject to control grain size, improve the sintered bulk density, reduce the porosity and suppress the second phase for producing a semitransparent ceramics.

所以如何控制晶粒成长尺寸、提高烧结体密度、减少孔隙及抑制第二相产生是很重要的课题。

To prepare potassium sorbate pellets by extrusion-spheronization and study the factors of decision bulk density.

应用挤出滚圆法制备山梨酸钾微丸，对影响堆密度的因素进行考察。

Then the samples obtained were determined by bulk density, specific surface area, pore volume, particle size and TEM.

制备的纳米二氧化硅样品进行了堆积密度、比表面积、孔容积和粒度以及TEM的测定。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。