Controllable synthesis of the silica-supported rhodium catalyst with uniform particle size has been achieved through microemulsion technique by manipulating the W_0 value (molar ratio of water to surfactant in the precursor).
利用微乳法,通过调节W0值(水与表面活性剂的摩尔比),实现了负载型Rh/Si O2催化剂中金属铑粒子大小的可控合成。
The particle size, morphology, distribution of carboxylic group and alkalic thickening nature were investigated.
对复合胶乳的粒子大小及形态结构、羧基分布和碱增稠性能等进行测试 ;考察了复合乳化剂浓度和聚合方式对复合胶乳性能的影响。
on the latex particle size.
讨论了引发速率和乳化剂浓度以及不同聚合方法和各种条件对乳胶粒子大小的影响。
The Effect of Transition Metal Ion on the Size of Mesoporous Silica
过渡金属离子对介孔氧化硅粒子大小的影响
An organic particle of colloidal size found in coal.
胶态离子见于煤中的胶粒大小的有机颗粒
The finite size of real particles compounds the difficulty.
实际粒子的有限大小增加了困难度。
The Particles and the Universe-From Macro- and Micro-scopic Scales to Cosmoscopic Scale;
粒子之小和宇宙之大——宏观、微观和宇观
Particulate matter includes particles from molecular size to greater than 10Mm in diameter.
微粒物质包括从分子大小到直径大于10微米的粒子。
The response of a particle to the application of a sudden supersaturation depends on its size and on its composition.
一个粒子对突然过饱和的反应依赖于粒子的大小和成分。
The morphological structure and the particle size of latex particle were studied by means of TEM.
采用透射电子显微镜研究了乳胶粒子的形态及粒径的大小。
the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated.
悬浮在溶液里的小粒子的接合过程；这些大粒子随后沉淀的过程。
Transmission electron microscope and laser scattering particle analyzer were used to determine the average particle size.
通过激光粒度分析仪及透射电镜测定溶胶粒子的大小。
The rate of sedimentation of a suspended viral particle depends on its size and density.
悬浮病毒粒子的沉降率因其大小和密度而异。
Effect of aluminium sources on crystal size and morphology of ZSM-5 zeolite
铝源对合成ZSM-5分子筛晶粒大小及形貌的影响
Maximum entropy particle swarm optimization for nonlinear l-1 norm minimization problem
非线性l-1模极小化问题的极大熵粒子群算法
Application of ImageJ Analysis Software In Measuring Kernel Size of Maize Seeds
ImageJ图象处理软件在测量玉米子粒大小中的应用
The particles in an atom are infinitely small.
原子里的粒子极小.
He says nanometer-sized particles behave differently in the body and the environment compared to larger particles.
他说比起较大粒子，在身体和外部环境中纳米大小的粒子表现各不相同。
In this sense photons differ very much from little grains or bullets of matter.
在这个意义上，光子大大不同于物质的细粒或小丸。
have fine or very small constituent particles.
有很细小的粒子成分的。
These devices exploit the fact that Brownian motion displaces small particles farther than it does big ones.
这些元件利用的原理是，布朗运动让较小的粒子移动得比大的粒子远。
