The contact mass prepared with ultrasonic dispersion method was proved to hold higher activity than that of prepared with simple mixing method.
采用简单混合法和超声分散法2种催化剂触体制备方法,将自制铜粉与适量的氧化锌助催化剂混合,由直接法合成甲基氯硅烷,并建立了毛细管气相色谱法定量分析甲基氯硅烷的方法。
A PVDF/Polyacrylate composite emulsion was prepared by emulsion polymerization using mixture of polyvinylidene fluoride,methyl methacrylate and butyl acrylate monomers in presence of fluorine-containing surfactant by ultrasonic dispersion process.
在含氟表面活性剂存在下,将聚偏氟乙烯超声分散于甲基丙烯酸甲酯和丙烯酸丁酯的混合单体中进行乳液聚合,制备了聚偏氟乙烯/聚丙烯酸酯复合乳液。
The influence of ultrasonic dispersion time,seed type and DVB concentration were discussed.
利用超声分散改进的二步溶胀法制备4~9μm的聚苯乙烯-二乙烯苯(PSt-DVB)多孔微球,并以防晒剂parsol 1789为模型组分考察了其缓释性能。
A method to solve the scattering acoustic field of complex target was proposed for the near-field scattering characteristics of an underwater target in high-frequency.
针对水下目标高频近场散射特性,提出了一种求解水下复杂目标散射声场的方法。
Coupling of exterior/interior field with BEM and numerical simulation of acoustic scattering of fluid target
边界元计算内外声场耦合及流体目标声散射
Calculation of acoustic scattering of a nonrigid surface using physical acoustic method
用物理声学方法计算非硬表面的声散射
Numerical Solution of the Limited Aperture Problem in Three-Dimensional Inverse Acoustic Scattering
三维有限孔径逆声散射问题的数值解
diffuse-field response of microphone
传声器扩散声场频率响应；传声器扩散场响应
radiator louver antisqueak
散热器百叶窗减声片
The loud noise scattered the birds.
巨大的声响将鸟驱散。
diffuse-field sensitivity of microphone
传声器扩散场灵敏度
deep scattering layer
测深声波)深海散射层音波散射层
The sobs ebbed away like ruined echoes
呜咽声像消散的回声似的微弱下来。
On the Prose of Meiniang;
一脉心声,不成故事的散华片玉——梅娘散文论
New Proses Characteristic of Essays--On Liang Xiaosheng s Proses;
有杂文血统的新散文——谈梁晓声的散文创作
The Long-Wavelength Acoustic Phonon-Electron Scattering in Single-Walled Carbon Nanotubes
单层碳纳米管中的长波声学声子对电子的散射
ultrasonic seismic scattering tomography
超声地震散射层析成象法
scattering layer
能使声波散射的海中浮游生物层
The shrill ringing of a bell broke up the card game on the cutter.
刺耳的铃声打散了小汽艇的牌局。
emitting or making sporadic spitting or popping sounds.
发出或做出零星分散或爆破的声音。
Don't blacken his good name by spreading lies.
不要散播谎言诋毁他的名声。
utter with a spitting sound, as if in a rage.
像是在生气中用分散的声音。