查询词典 bulk density

Slope direction, slope position and the bareness degree of rock have few influences upon soil nutrient and soil bulk density.

坡向、坡位和岩石裸露度对土壤养分和容重几乎没有影响。

The bulk density of these peels of root and crops decreased with the increases of milling time could be caused by porosity or capillarity on the surface.

三种样品粉末之体积密度均随研磨时间延长而降低，推测可能原因是三种果皮在微细化处理之后，其表面产生多孔状或表面的毛细现象所致。

The coefficient of variation of bulk density and field capacity fluctuate with depth of soil.

饱和含水量和田间持水量的块金值在剖面上变化趋势相同。

The effects of different temperatures on compressive strength and bulk density were studied.

主要探讨了不同的烧结温度对试样的耐压强度和体积密度的影响。

The results indicated that the soil physical fertility characteristic of super high-production cornfield was high, mainly display in the topsoil was deep, soil bulk density changed between 1.01-1.26 g/cm3, disarrangement rate of soil structure was...

研究结果表明，超高产玉米田土壤物理肥力特性较高，主要表现在耕层较深厚，土壤容重变化在1.01～1.26g/cm3，土壤的结构破坏率较低；在土壤的化学环境特征方面，土壤碱解氮、速效磷、速效钾等均未表现出明显的变化规律；所有超高产田的土壤阳离子交换量均不同程度地高于普通生产田，这与超高产田的定向培育有直接关系；一些超高产田有机质低于普通生产田，其原因与超高产田氮素施用量较高、促进了土壤有机质矿化有关。

2After the utilization of seasonal exclosure, the proportion of coarse sand (2.00～0.25 mm) dropped significantly, and the proportion of fine sand (0.25～0.05mm) and silt and clay (.05mm) increased significantly, soil bulk density and compaction dropped, soil porosity, nutrient and microbe quantity increased, soil microbial biomass and enzyme activity enhanced in the layer of 0～10cm and 10～20cm.

2放牧草地采用生长季围封恢复措施后，土壤0～10cm、10～20cm土层中粗沙(2.00～0.25 mm)含量显著降低，细沙(0.25～0.05mm)和粉粘粒(。05mm)含量显著增加，土壤容重和紧实度降低，土壤孔隙度、养分含量、微生物数量、微生物生物量碳、氮含量增加，土壤酶活性增强。

Based on KT-01 nickel catalyst, the scientific research personnel of our company and the expert group of the former subject group from Lanzhou University made joint efforts to tackle the key problems and successfully developed the 2nd generation of KT-02 supported nickel catalyst through in-depth study on the technical formula, catalytic activity and other mechanisms and taking modified carrier, the properties of acid and alkali, the degree of decentralization of active ingredients on the carrier surface, and fundamental breakthrough has been achieved on the aspects of catalytic activity, specific surface area, bulk density, etc, and the technical defects of KT-01 nickel catalyst are completely overcome; the catalytic activity becomes higher, the starting temperature becomes lower, the industrial serviceability temperature is lowered and the yield increased.

在KT-01型镍催化剂的基础上，我公司科研人员与兰州大学原课题组专家联合攻关，通过对工艺配方及催化活性等机理的深入研究，从载体改性、酸碱性、活性组分在载体表面的分散程度等方面入手，成功开发出第二代KT-02负载型镍催化剂系列产品，在催化活性、比表面积和堆密度等方面都有根本性突破，彻底克服了KT-01型镍催化剂的技术缺陷，使催化活性更高、启动温度更低，降低了工业使用温度，提高了生产收率。

The measuring method of bulk density of abrasive micro grits and the principle of the instrument are introduced in this paper.

本文介绍了微粉堆积密度的测量方法及测量仪器的基本原理，采用数理统计的方法对试验数据进行了分析，确定了测量过程的不确定度。

Results showed that both bulk density and micropore volume of the formed activated carbon controlled the volumetric storage capacity of methane.

结果发现：随粘接剂含量的增大，所制型炭的抗压强度、堆密度增大，而比表面积及孔容减小，其对甲烷的吸附性能也呈下降趋势。

The results show that the penetrability of powder loads can be improved when suitably reducing bulk density and grain size of gun propellant, increasing nitrogen content of NC and choosing oblate spheroid explosive respectively under the constant test con

结果表明，在其它试验条件不变的条件下，适当降低发射药堆积密度、适当提高发射药中硝化棉含氮量、选用恒面燃烧的扁型药、降低发射药粒度均有利于提高射钉的穿透能力。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。