查询词典 elementary particle

The residue obtained by pyrolyzing different time was analyzed by elementary analyzer and particle analyzer; Liquid produced by extracting the residue for 24h with Soxhlet extractor through toluene and carbon bisulfide were also resolved by gas chromatography and mass spectrometry, ultraviolet-visible spectrophotometer and Fourier transform infrared spectrometer.

实验首先对煤进行热解，然后对作用不同时间的煤热解残渣进行元素分析和粒度分布分析，并用有机溶剂甲苯和二硫化碳对热解残渣采用索氏提取器抽提24 h，将所得提取液采用紫外-可见光谱仪、红外光谱仪和气质联用仪等手段进行表征。

Also, in quantum mechanics, the use of the term particle refers to an elementary or subatomic particle.

同样在量子力学里，使用术语粒子指的是一基本或亚原子粒子。

On the basis of introduction of the elementary principles and features of Particle Swarm Optimizational- gorithm,a new multi-thresholds segmentation method based on PSO is proposed.

在对粒子群优化算法的基本原理和方法进行简要概述的基础上，提出了一种基于粒子群的多阈值图像分割算法。

Nano-Se is the nano particle of elementary selenium that dispersed by protein.

纳米硒是以蛋白质为分散剂的单质硒纳米粒子。

The European Large Hadron Collider is the world's largest particle accelerator to study the origin of the universe and all the features and interaction of elementary particles by far the most powerful tool.

欧洲大型强子对撞机是目前世界上最大的粒子加速器，为研究宇宙起源和各种基本粒子的特性和相互作用提供迄今最强有力的工具。

The analysis gets the result: the two methods both make out the heteromorphism InSb nanocrystals, which have different crystal lattices. There are few In and Sb elementary substance grains mixed in the samples and the ratio of two kinds of chemical elements nears to 1:1. The crystal structure of the particle which is gained in vacuum evaporation method is affected by the crystal structure of substrate surface and anneal, the size of grain is direct proportion to evaporation time.

分析得到结果表明：两种方法均制备出了多晶态的InSb纳米微粒，但晶格结构不同，样品中都混有少量的In和Sb单质颗粒，且两种元素的比均接近1：1；真空蒸镀法得到的微粒的晶态受基片表面晶格和退火的影响，颗粒的尺寸与蒸镀时间成正比；而惰性气体中蒸发法得到的微粒结晶过程与基片无关，颗粒的尺寸与惰性气体的种类和压强有关。

Our current theory of elementary particles and forces, known as the Standard Model of particle physics, has achieved a unification of electromagnetism with the weak interactions, the forces responsible for the change of neutrons and protons into each other in radioactive processes and in the stars.

最近的关于基本粒子和力的理论，就是在粒子物理里面叫"标准模型"的，已经将电磁力和弱相互作用统一起来。弱相互作用可以使质子和中子在放射过程和星球内部发上相互转变。

The gas-to-powder conversion is carried out following the route: DMS pyrolyzes and forms product molecule and molecular clusters, the product molecular clusters that grow to and above the critical size by random collisions with molecules and other clusters become elementary particles, the elementary particles grow further by collisions and fusion with molecules, clusters and other elementary particles to form resulted SiC particle.

论文采用TEM、HREM、XRD、IR、NMR、中子衍射、Raman光谱和定量化学分析、光透沉降粒度分析等手段，对制备得到的纳米SiC粉体进行了系统表征研究，并研究了SiC纳米粉体的成核、生长、晶化过程和机制，指出化学气相反应法制备SiC纳米粉体的过程是一个均匀成核→核子生长形成初始颗粒→初始颗粒熔融碰撞→产物粉体的过程。

Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.

尽管听起来很古怪，宇宙膨胀理论是量子物理中一些颇受尊重的观点所产生的似是而非的结果，但是许多天体物理学家深信，在未来十年里，这一观点是正确的。

Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary-particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.

尽管宇宙膨胀说听起来有点奇怪，但它是由基本粒子物理学上一些权威观点所推导出的结果，这个结果从科学的角度讲似乎是有道理的，并且在近十年的时间内，很多天体物理学家都相信它是正确的。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎