查询词典 particle

Through above improvement with perfect on antetype equipment foundation have made NMP-Ⅰtype metal nanometer particle preparation installation, so to have established material foundation for prepare metal and alloy nanometer particle.

通过以上的改进和完善在原型设备基础上制作了NMP-1型金属纳米微粒制备装置，从而为制备金属与合金纳米微粒奠定了物质基础。

Then "得" evolved gradually into an aspectual particle and a structural particle along two respective meaning lines:"obtain" and "can".

得"字第一次重要演变是先秦时期从一般动词转化为助动词；然后"得"沿着"得到"、"能够两个方向逐步演化为动态助词和结构助词。

Another particle whirls around this central particle at a tremendous speed.

另一个微粒绕着中心的这个微粒以极高的速度旋转。

Sol-gel Autoignition Synthesis, simple, self-cleaning and easy to undertake scale production, is the one of the prospective routes for manufacturing barium titanate powders.BaTiO3 nanopowders with the particle size 20-90nm, specific surface area 15m2/g, fine particle distribution, ratio of Ba/Ti 1.002 and with the dielectric constant more than 3000, were synthesized by SAS BaTiO3-TiCl4-ammonia-citric acid system.

本文自己组装的溶胶凝胶自燃合成系统，利用对Ba(NO_3)_2-TiCl_4-柠檬酸-氨水体系进行自燃合成研究，制备了具有纳米尺度的近球形BaTiO_3颗粒，粒径介于20-90nm之间，比表面积15m~2／g，分布范围较窄，Ba／Ti为1.002，器件介电常数最高达3000多。

The size of particle is 26.2nm after agglomeration at 1073K and the particle is well-distributed with slight barium carbonate.

实验表明，经1073K 烧结后粉体粒径为26 2nm，颗粒分布均匀，还有少量BaCO3存在。

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型，对气粉两相流场进行了数值研究，探讨了气相和煤粉的速度分布规律及其影响因素，其中包括氧-煤喷枪的结构、漩流数和富氧率等。

If we could actually see the path described by a particle, such as a sand grain in the rock, it would be more like that of a bluebottle path described by a particle, such as a sand grain in the rock, it would be more like that of a bluebottle buzzing round the room; it would be up and down, to and fro and from side to side.

假如我们真能看到诸如岩石中一个沙粒子的运动轨迹，那就像一只嗡嗡叫的绿头苍蝇在屋内飞行的轨迹，呈现出上上下下、来来回回、左左右右3种性质的运动。

If we could actually see the path described by a particle, such NEW CONCEPT ENGLISH-BOOK FOUR as a sand grain in the rock, it would be more like that of a bluebottle path described by a particle, such as a sand grain in the rock, it would be more like that of a bluebottle buzzing round the room; it would be up and down, to and fro and from side to side.

已经设计出了一些仪器，它按照一定的安放方式就可测绘出这三种运动的曲线图。

A new particle swarm optimization, PSO with bounded mutation operator, was developed. In contrast to the original PSO, in this algorithm, PSO with bounded mutation operator would make the particles redistributed cquably close to boundary when place of particle exceeds feasible region during iteration.

提出了一种新的粒子群优化算法——带边界变异的PSO，其原理是：在迭代的过程中，当粒子的位置超出可行域时，带边界变异的PSO让粒子的位置重新均匀分布在边界附近；当粒子的速度超出可行域时，则使其均匀分布到整个可行区间，而不是像原始PS0那样在这2种情况下都只是简单地取边界值。

Such a hypothetical particle (a tachyon, as opposed to the more familiar tardyon, or slower-than-light particle) might emit Cerenkov radiation analogous to the bow wave of a ship, and thus might perhaps be detected.

这样一个假设的粒子（超光速粒子是相对于较熟悉的次光速粒子，或者是亚光速粒子而言的）可能放出类似于轮船涡流的契伦科夫辐射，因此可能被探测到。

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。