relative density

By theoretical analysis, the air solubility formulae that are suitable for calculation of air-lift for ocean mining are established. This reflects the relationship between air solubility and pressure, relative rate of air content, diameter of air bubble, specific gravity and density of solid particle.

通过理论分析，建立了气体溶解度方程，导出了适用于大洋采矿气力提升的气体溶解度公式，它反映了气体溶解度与压力、相对含气率、气泡直径、固体颗粒比重和浓度诸因素的关系。

It crystallises in colorless rhombohedral with a relative density of 1.95.

高氯酸铵是一种无色菱形晶体,相对密度1.95.

The results were as follows: ( 1) The color of milk was no abnormal, and the tissue of milk was a slight viscous phenomenon in the five cities; the relative density of 12 samples were lower than the national standard in Wuwei city.

结果表明：（1）五市乳样色泽无异常，有轻微的粘稠现象，武威市有12份样品相对密度低于国家标准。

The target characteristics including relative density, microstructure, content of Ti rich β phase were introduced. The relationship between target characteristic and technical conditions was researched.

研究了靶材致密性、富Ti的β相含量、微观结构均匀性与工艺条件的关系。

The solid product is canary or the french grey resin shape pellet, relative density is 1.45.

固体产品为淡黄色或浅灰色的树脂状颗粒, 相对密度1.45.

Relative density, tensile strength and elongation of samples were also measured and analyzed.

对烧结样的相对密度、抗拉强度、延伸率等性能进行了测定与分析。

The IR spectrum indicate that the soybean oleic acid has been added onto the bone of sugar, the the degree of esterification was 6.9, the acid value was 0.38, the iodine value was 134.2, and the relative density was 0.9346.

红外光谱分析可知大豆油酸加到了蔗糖骨架上，平均酯化度为6.9，酸值为0.38，碘值134.2，相对密度为0.9346。

The highest density reached 7. 49 g/ cm3 after sintering, with a relative density of 97. 74%;

烧结试样密度最高为7.49g／cm3，其相对密度为97.74%；

The lithium disilicate glass-ceramics and their composites with high relative density were prepared by melting method and hot-pressing technology, respectively.

本文分别采用熔融法和热压烧结工艺制备了致密的二硅酸锂微晶玻璃及其复合材料。

Combining with the experimental results, model parameters can be regressed by relative density and relative size.

根据试验结果，回归出模型参数与颗粒物性相对密度、相对粒度的关系。

The influence of thermal ageing on the crosslink density, relative number of crosslinking bonds ( RNB) and percent gel are studied by high temperature accelerated ageing tests.

本文用高温加速的方法研究热氧老化对丁羟基复合固体推进剂交联度、相对交联度和凝胶百分数的影响。

Mass loss rates of fir leaf litter appeared consistent with the taxa and individual relative density of soil fauna.

不同孔径凋落物袋内土壤动物的类群和个体相对密度与凋落叶的质量损失率呈现相对一致的变化趋势。

Figure 5 – Effect of compaction pressure on the relative density of AISI 434 L green compacts.

图5-的影响,压实的压力,相对密度艾西四百三十四升绿色协约.

For the first time, a uniform formula of the relative density of honeycomb is established, which include the results by Gibson and Ashby. 2.

首次建立了蜂窝材料相对密度的统一公式，把Gibson、Ashby的结果作为特例包含在内。

The check item includes the dose, relative density, PH value, dynamics check, assaying and microbial limit check.

检查项下内容包括装量、相对密度、PH值、动力学检查、含量测定、微生物限度检查。

By the density test of blow-drying and stoving of non-aridity core sample from asphalt pavement, the bulk volume relative density and compactness can be calculated under different test conditions.

通过对沥青路面上钻取的非干燥试件进行风干和烘干试验，计算不同试验条件下心样的毛体积相对密度和压实度。

According to model of Gibson and Ashby, ratio of diameter and length of struts can directly affect relative density and mechanical properties of ceramic foams.

根据Gibson和Ashby模型，泡沫陶瓷孔筋的直径和长度的比值将直接影响其相对密度，从而影响泡沫陶瓷的力学性能。

The results indicate that salt stress has little effect on the absorbency, pH, relative density, solid matter, water and Mg 2+ content of aloe.

结果表明，盐胁迫对芦荟全叶原汁的吸光度、pH值、相对密度、总固形物、水分含量和镁离子含量的影响较小，但对多糖和钙离子含量的影响较大。

Having low relative density or specific gravity.

具有很小的相对密度或者比重。

And the holding time of pressing pressure has little influence to he relative density.

保压时间对于坯体相对密度的影响很小。

A case study on SLS of this Cu-based metal powder to fabricate a gear is carried out. 82% relative theoretical density and transverse dimension error of 1.9% are achieved.

最后给出了激光烧结上述金属粉末制造齿轮的加工实例，其致密度达理论密度的82%，而横向尺寸误差仅为1.9%。

The effects of the relative density of mixture, the content of Al particle, the size of Al particle, the heating rate, the content of dilution Fe on the thermal explosion point temperature and the thermal explosion delay time are analyzed.

对工艺参数如混合物的相对密度、Al粉的相对含量、Al粉粒度、加热速率、Fe的相对含量对热爆点温度和热爆延滞时间的影响做了分析。

The increase in species, variation in community structure and obvious recovery in relative biomass index and relative biotic density index of necton indicated that ecological environment of Yun-dang lake had been improved greatly by further comprehensive control and management since 1993.

游泳生物种类的增加和群落结构的变化以及相对生物量指数和相对生物密度指数的明显恢复，表明筼筜湖经过1993年以来的进一步综合治理，生态环境的改善是显著的。

The results showed that S100 positive nerve tissues were abundantly distributed in the cardiac conduction system, and the relative density varied in different regions, the rank order being sinoatrial node> atrioventricular node> bundle of His and bundle branches.

结果显示：S100阳性的神经组织在心脏传导系统内广泛分布，其含量以窦房结最多，房室结次之，希氏束和束支最少。

Ceramics were sintered at 950 ℃ by adding ZnO as sintering assistant in CZP powder, and the relative density, average thermal expansion coefficients, strength resistance, and microstructure of the ceramics were measured and observed.

添加ZnO为烧结助剂，将CZP粉体在950℃下烧结成陶瓷，测定和观察所制备陶瓷的相对密度、平均热膨胀系数、抗压强度和显微结构。

The relative density is promoted because Mo particles fill into the holes of fused quartz.

Mo颗粒填充在熔融石英基体的孔隙,从而提高了复合材料的致密度.

The relation between leakage current and hydrophobicity, conductance ratio of salt fog, ESDD ( Equivalent Salt Deposit Density), NSDD ( No soluble Deposit Density), relative humidity under nominal voltage.

额定电压下合成绝缘子的泄漏电流与憎水性、盐雾电导率、等值盐密、等值灰密、空气相对湿度的关系；

Effect of Relative Density on Compressibility of Al-Si Closed-Cell Aluminum Foam

Al-Si闭孔泡沫铝材料的压缩行为

The relative density of the composites is the main factor of influencing the wear rate. The composites with high density can remain relatively low wear rate of ( 0.5~ 2.1)× 10-3 mm3/ m under the experimental conditions.

复合材料相对密度对磨损率的影响较大，接近理论密度的复合材料在本研究试验条件下能保持较低的磨损率，最低可达到0.5×10-3~2.1×10-3mm3/m。

The selections of criteria of artificial bedding in the aspects of relative density, grain size, shape and electromagnetism were proposed;

从相对密度、粒度、形状及电磁性方面提出了人工床层的选定标准；