查询词典 particle

The common assumption that the ratio between particulate organic carbon and particulate 234Th obtained from shallow sediment traps and filterable particles are representative of the ratio in the total particle settling flux should be treated with caution in view of well-known biases associated with tethered shallow sediment traps and the decoupling between size and settling velocity of many natural particle regimes....

在微粒有机碳和从浅薄沉淀物和可过滤颗粒中得？？？？？的第234种元素的比例是所有沉淀物熔化比例的典型代表。从众所周知的关于浅薄沉淀物的范围以及在许多天然颗粒体的大小和沉淀速率这个角度来看，这种通常的假设应谨慎对待。。。

In this paper, the simulation of the process of particle growth integrated the basic theories of fluid and particle dynamics.

本文综合了流体动力学和颗粒动力学的基本理论，对火焰中二氧化钛颗粒的生成，运动，长大等过程进行了详细的数值模拟。

Velocity is a measurement of speed and has nothing to do with mass; however, force is a vector that is applied to the particle to change the particle velocity, and when it is applied, mass is taken into consideration (acceleration = force / mass).

速度是速率的衡量标准，它和物体的质量无关；然而力是施加在粒子上并改变粒子速度的一个矢量，当它施加在粒子上时，质量就成为要考虑的因素

An introduction is given to significance of particles bulk volume density , with detailed description of test method and computation formula of coarse particle bulk volume density and fine particle bulk volume density .

介绍了颗粒毛体积密度的意义，详细阐述了粗颗粒毛体积密度和细颗粒毛体积密度的试验方法及计算公

The main identifying characters of wear particle on the ferrogram such as dimension,distribution,quality,component and form of the wear particle were generalized for the three friction couples of gear case including gear,bearing and sliding contact which is in the different phases of running-in wear,normal wear and abnormal wear and in the different degrees of overload,over-speed and fatigue.

介绍了铁谱分析的原理、样品的制备方法和铁谱分析的步骤，概括了齿轮箱齿轮、滚动轴承、滑动接触3种主要摩擦副在磨合磨损、正常磨损、异常磨损3个阶段的磨粒的主要识别特征，包括尺寸、尺寸分布、数量、成分和形貌等。

This text discusses the principle of the broking solid particle an d emulsifing liquid particle in the fruit-vegetable juice homogenizing,and the principle of highly shearing homogenizing mechanism as well as,makes use of high ly shearing homogenizing mechanism to homogenize the celery juice.

本文对果蔬汁均质中固相破碎与液相分散乳化机理和高剪切均质机理的研究，利用高剪切均质机对芹菜汁进行均质试验研究，试验表明高剪切均质机在对果蔬固液料均质效果较佳，对抑制果蔬汁的分层有明显效果。

After studying the characteristics of Particle Swarm Optimization,Particle Swarm Optimization is used in wavelet domain to optimize the thresholds,and garrote shrinkage function is used to process wavelet decomposition coefficients,which overcome the shortcoming of discontinuity of hard-threshold and decreased the fixed bias of soft-threshold.

研究粒子群优化算法的特性，将其应用于小波域，对阈值进行寻优，并使用garrote阈值函数量化小波分解系数，而garrote阈值函数既克服了硬阈值函数的不连续性，也减小了软阈值函数存在的恒定偏差。

Base on the Fluent software,the time-average N-S equation,RNG k-ε turbulence modeling,P1 radiant modeling and particle track modeling,example for boost motor PQM-1 of Titan 4,by using flow-solid coupling boundary condition,the 2D axial symmetry gaseity fluid modeling and two phase fluid modeling were founded and the influence of coagulate particle to the flame-spread process in large aspect ratio SRM ignition transient were analyzed.

0引言固体火箭发动机点火过程是点火燃气流动与火焰传播相互耦合的过程，即包括点火燃气流动、药柱加热、局部点燃、火焰传播、室压建立等复杂的非定常过程，其中火焰传播在点火瞬态过程中占有重要地位，是发动机点火延迟、压强峰值过高、断续燃烧和熄火的主要因素，因此国内

Experimental results indicate that glutamic acid can increase the decomposition ratio of sodium aluminate at lower concentration. The particle size of gibbsite product is reduced when the additive concentration is 3×103 mol/Lat 2 h. The particle size is enlarged under other conditions.

结果表明：谷氨酸在一定浓度范围内能提高铝酸钠溶液分解率，低浓度时添加效果最佳；添加浓度为3×103 mol/L，反应进行到2 h时产品粒度得到细化，其它条件下产品粒度均得到粗化。

Textural properties of feed (fiber content, particle size and particle integrity) are important for proper gizzard musculature and motility.

饲料的结构特性（纤维含量、粒径大小和粒的完整性）对肌胃的肌肉组织和运动是很重要的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。