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1)  improvement on preparatory treatment
预处理方法改进
2)  Improvement of pretreatment method
改进前处理方法
3)  feed preparation techniques
进料预处理方法
4)  pretreatment method
预处理方法
1.
Current situations of pretreatment method research of the refractory gold ores with as and carbon
含砷含碳双重难处理金矿石预处理方法研究现状
2.
Some tropical plant fibers and their development and application were reviewed,and some fiber pretreatment methods enumerated.
本文介绍了几种热带植物纤维的性能及其应用情况,并列举了几种纤维的预处理方法。
3.
The current situations of industrial application and research on pretreatment methods which include roasting oxidation, pressure oxidation, bacteria oxidation and chemical oxidation for refractory gold ores at home and abroad were summarized.
本文对难处理金矿石进行了定义、分类 ,简要分析了难处理金矿石难浸的原因 ,指出该类金矿石浸前须进行预氧化 ,才能取得理想效果 ;详细综述了氧化焙烧、加压氧化、细菌氧化和化学氧化等难处理金矿石预处理方法在国内外的研究与应用现状 ,并评述了各方法的优缺点 ;对难处理金矿石预处理方法的未来发展趋势作了展望。
5)  Pre-processing method
预处理方法
1.
Denoising control signals for pulse width modulation valves based on the optimal pre-processing method of multi-wavelet;
最优预处理方法的多小波PWM阀控制信号消噪
2.
Based on the introduction of multiwavelets and their pre-processing methods,the influence on multiwavelet filters response with the different pre-processing methods are discussed and compared in this paper.
在介绍多小波基本理论的基础上 ,探讨了多小波的不同预处理方法并对多小波滤波器响应产生的影响进行了比较 。
6)  precondition method
预处理方法
1.
A precondition method was applied to chemical non-equilibrium flow.
将预处理方法发展应用于化学非平衡流场的数值模拟中。
2.
All speeds control equations were deduced from traditional compressible equations with precondition method and applied to 2D inviscous/viscous flows at all speeds.
基于预处理方法,采用有限差分方法,LU-SGS隐式求解了二维可压Navier-Stokes方程,数值模拟了无粘突包、粘性空腔、化学非平衡流场,并与试验结果进行了对比。
3.
All speeds control equations were deduced from traditional compressible equationswith precondition method and applied to 2D inviscous/viscous flows at all speeds.
本文采用预处理方法,构造了全速度控制方程,并将其应用到二维粘性/无粘全速度流场的数值模拟中。
补充资料:似预聚物方法
分子式:
CAS号:

性质:一种制备聚氨酯泡沫塑料的方法。它介于预聚物法和一次法之间。其方法为:将多元醇(聚酯或聚醚)先与过量的二异氰酸盐反应,生成一个低黏度的预聚物,然后在催化剂存在下与更多的多元醇、乙二醇和其他组分反应,形成聚氨酯泡沫。本方法可用于生产软泡沫和硬泡沫。

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