查询词典 bulk density

Applying desulphurization by-product properly can reduce soil bulk density, improve soil structure, increase soil permeability and improve the physical properties of soil moisture, reduce pH, ESP, TDS and improve the sodic soil physical and chemical properties.

脱硫副产物能降低土壤容重，改善土壤结构，增加土壤通透性，改善土壤水分物理性状，中和土壤碱性，降低土壤pH值和碱化度，降低土壤的全盐量，从而达到改良碱化土壤的作用。

Optimal technical conditions of preparing spherical nitroguanidine had been obtained by adopting uniform design experimentation, and the spheral nitroguanidine with higher bulk density had been prepared.

采用均匀设计法优选球形硝基胍制备工艺，可获得较大堆积密度的球形NQ。

The nuclei density at the surface of carbon fiber is much higher than that in the bulk area, and the resulting radial growth produces a type of transcrystalline structure, and the characteristic temperature of crystallization increases with carbon f...

结晶动力学表明：结晶生长本质仍是球晶机理，促进聚丙烯结晶的原因是碳纤维使结晶过程的表面自由能降低。

It is shown that the surface of carbon fiber displays a high propens ity to nucleate PP crystallization. The nuclei density at the surface of carbon fiber is much higher than that in the bulk area, and the resulting radial growth produces a type of transcrystalline structure, and the characteristic temperature of crystallization increases with carbon fiber concentration.

碳纤维表面对聚丙烯结晶过程具有明显的促进作用，纤维表面成核密度轻高，结晶生长成为横穿结晶，结晶特征温度随碳纤维加入而有不同程度的升高。

Results showed that:(1) soil loss from plough tillage was as much as 3~8 times that from no-tillage; the aerodynamic roughness lengths under plough and no-tillage were 0.032, 0.417, respectively.(2) No-tillage soil contained more clay and fine sand in the 0-10cm topsoil layer than the plough tillage soil. In the 0-5 and 5-10cm soil depth, the bulk density, soil hardness and soil moisture were more under no-tillage than plough tillage. Especially, the soil hardness in 0-5, 5-10 and 10-20cm under no-tillage were as much as 4.7, 2.8 and 3.8 times, respectively.

研究结果表明：翻耕农田土壤风蚀量是免耕地的3~8倍，翻耕地和免耕地的地表粗糙度分别为0.032和0.417；与翻耕地相比，免耕地表层0~10cm土壤粘粒和粉粒含量较多；免耕地土层0~5cm和5~10cm的土壤容重、坚实度和土壤水分都大于翻耕地，其中0~5cm、5~10cm和10~20cm土层土壤坚实度分别是翻耕地的4.7、2.8倍和3.8倍。

The results indicate that in the same reaction conditions the powders prepared by ammoniated silicon sol had smaller pellet diameter and bulk density than the direct sol-gel handling metho...

结果表明：采用氨解硅溶胶方法制得的原料粉末比直接溶胶-凝胶方法制得的粉末颗粒直径细小，团聚松散，堆积密度小。在同样合成条件下前者反应获得的碳化硅的转化率高，晶须含量高，质量好。

The density, electrical contact resistance and hardness of these two alloys were tested. The results show that Ag and rare earth oxide appear in Ag-Y and Ag-Ce alloy after internal oxidation. The distribution of oxide particles is inhomogeneous and seriously conglomerated in Ag-Y2O3 and Ag-CeO2 sintered bulk, but they are dispersed and uniform in Ag matrix after severe plastic deformation. The relative densities of wire materials are larger than 99% and the electrical contact resistances are low (＜2.2 μΩcm).

结果表明：Ag-Y和Ag-Ce合金粉末经内氧化处理后生成Ag和稀土氧化物2种物相；Ag-Y2O3和Ag-CeO2材料烧结坯中氧化物颗粒分布不均匀且团聚严重，但材料经过大变形加工后，氧化物颗粒细小，均匀地弥散分布在银基体上；最终产品丝材的相对密度均达到99%以上，电阻率较低(＜2.2 μΩcm)。

The effect of inoculating crystal and additive on particle size and bulk density of CeO2 was studied.

用碳酸氢铵作沉淀剂制备大颗粒CeO2，研究了晶种和添加剂对CeO2产品的粒度和松装密度的影响，适量加入晶种和添加剂可以促进CeO2颗粒的长大。

5The different intercrops had different effects on soil physic-chemical characteristics. Soil bulk density、soil organic matter and soil available nitrogen were improved significance by intercropped cotton.

不同间作物对林木高生长没有产生显著差异，但对胸径生长的影响达到了显著性差异水平，间作棉花在第一年促进了三倍体毛白杨胸径的生长。

Based on the research of influencing factors and regularities of distribution of loess side slope stability in Northwest, the author select Pingshuo Antaibao southern spoil bank as subject investigated, and abstract several the most rudimental influencing factors which are ubiquitous concerning slope stability in loess area such as sloping shape, slope ratio, bulk density, cohesive force, angle of internal friction, elastic modulus, Poisson ratio, water immersion.

本文在探讨黄土地区边坡稳定性的影响因素及其分布规律的基础之上，选取平朔安太堡南排土场为研究对象，抽象出对于黄土地区边坡稳定性具有普遍意义的几个最基本影响因子：坡型、坡比、容重、内聚力、内摩擦角、弹性模量、泊松比、水。

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。