bulk density是什么意思

网络释义

用法例句

And to fulfill the high-load production after capacity expansion,it was necessary to properly increase the bulk density of the bed,ensure the residence time of the catalyst in the reactor,reduce the frequency of discharging and decrease unit consumption,so increasing the bulk density of the bed and stabilizing catal.

研究了生产全密度聚乙烯的M1催化剂的配制过程及原理,在冷凝态操作下,由于冷剂的存在对催化剂的活性有衰减作用,而且由于扩能后高负荷生产要求床层松密度适量提高,保证催化剂在反应器内的停留时间,减少出料次数,降低单耗,所以提高床层松密度、稳定催化剂活性成为稳定装置运行的重要条件。

Effect of rod milling technique on apparent density of atomized iron powder;

棒磨工艺对水雾化铁粉松装密度的影响

Optimization of particle size distribution for improving apparent density of iron powders used for warm compaction;

温压用铁粉松装密度的优化粒级匹配试验研究

Influence of pH value and surfactant on apparent density of nano-scale nickel hydroxide;

pH值和表面活性剂对纳米氢氧化镍松装密度的影响

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。

Commercial BeO applicable for Be and Cu master alloy production is produced by control of operation and technical conditions of precipitation,alkali washing,and calcination and also by testing of technical data such as specific surface area,bulk density,and ignition loss,etc.

通过对工业氧化铍生产过程中的沉淀、碱洗、煅烧等工序的工艺操作和技术条件的调整控制,同时加强对比表面积、松装密度及灼失等技术指标的检测,产出的工业氧化铍能满足铍铜母合金生产的需要。

The preparation of cerium carbonate product by cerium chloride and ammonium bicarbonate coprecipitation is studied,high bulk density cerium oxide has been obtained through cerium carbonate high temperature roasting.

研究了通过CeC l3与NH4HCO3共沉淀制备Ce2(CO3)3前驱体,Ce2(CO3)3经高温焙烧得到高松装密度CeO2。

Effect of loose dry density on process of quality control of lime-soil;

松干密度的测定及其在灰土地基质量控制中的作用

pitysophila damage to the pine forest could be controlled through adjusting the pine forest density;meanwhile,this paper found that the population density of the pine forest on the endroit was bigger than th.

通过对发生区内松林进行间伐、修枝等营林措施将郁闭度调整至0 5左右,松林中松突圆蚧的虫口密度从调整松林密度前的每束2 61头下降至0 63头,虫口密度下降75 86%,表明调整松林密度能有效地控制松突圆蚧对松林的危害;同时发现,阳坡上松林的虫口密度较阴坡上松林的虫口密度大,从阳坡向阴坡逐步过渡,松突圆蚧的虫口密度也随之下降,表明松突圆蚧的虫口密度与坡向有关,在景区绿化规划设计上应针对不同的坡向营造不同的树种,以防止松突圆蚧的发生和危害。

To maintain a good spread of solution in the population, the Loosing- density is defined and used in this algorithm,the fitness of the individual through Pareto strength and Loosing- density is also defined .

该算法定义和使用稀松密度来保持群体中个体的均匀分布,并将个体的Pareto强度和稀松密度合并到个体的适应值定义中,使得搜索向Pareto最优解集的方向进行并防止早熟;算法还采用多父体杂交策略,每代只产生一个新个体、淘汰一个最差个体,精英个体自动留存。

Aluminium oxide powders--Determination of apparent density

GB/T6522-1986氧化铝粉末松装密度的测定

Determination of apparent density of aluminium powder --Volumeter method

GB/T3171.2-1982铝粉松装密度的测定容量计法

Determination of apparent density of aluminium powder --Funnel method

GB/T3171.1-1982铝粉松装密度的测定漏斗法

Magnesium powders--Determination of apparent density--Scott volumetric method

GB/T4107-1983镁粉松装密度的测定斯科特容量法

Metallic powders--Determination of apparent density--Part 1:Funnel method

GB/T1479-1984金属粉末松装密度的测定第一部分漏斗法

Metallic powders--Determination of apparent density Part 3: Oscillating funnel method

GB/T5061-1998金属粉末松装密度的测定第三部分:振动漏斗法

Metallic powders--Determination of apparent density--Part 2: Scott volumeter method

GB/T5060-1985金属粉末松装密度的测定第二部分:斯柯特容量计法

1 Whole set of industrialization technology of producing metal powder by atomization.

提供低松装密度高强度雾化铜粉，高品质铜锡10粉及雾化制粉工业化生产技术。

high desity assembly

高密度装配高密度组件

grannie dress

(从颈部一直达到踝部的松身密实装;祖母装

gas flow neutron density measuring assembly

柳型中子密度测量装置

neutron flux density scanning assembly

中子通量密度扫描装置

DENSITY AND BIOMASS DYNAMICS OF PINUS TAIWANENSIS AT SONGYANG COUNTY,ZHEIIANG PROVINCE

浙江省松阳县黄山松种群的密度与生物量动态

Osteoporosis is a bone-thinning disease.

骨质疏松症是一种骨密度变稀的疾病。

Study on Stress Relaxation of Hay During Baling Under High Density

牧草在高密度压捆时的应力松弛研究

Study of Density Control Techniques of Larix kaempferi Plantation

日本落叶松人工林密度调控技术研究

Undergrowth Vegetation and Soil Properties of Pinus massoniana with Different Densities

不同密度马尾松林下植被和土壤性质

For a string of specified length, tautness and density only certain note can be generated

一根确定长度、松紧和密度的弦只能发出某某音。