The results showed that poly( ethylene glycol) as a phase transfer catalyst can raise the conversion.
指出聚乙二醇作为相转移催化剂可增加转化率。
OBJECTIVE To investigate the effect of adding ethanol in inner organic phase on the properties of poly (d, 1-lactide) microspheres.
目的考察内相乙醇加入量及其他制备因素对聚丙交酯微球性质的影响。
The design method for hybrid waveforms utilizing ran-dom poly-cell code pulse position modulation (PPM) and pulse-to-pulse binary sequences phase modulation (PM) is introduced in this paper.
该文提出了一种利用随机多元码脉位调制(PPM)和脉间伪随机或随机二元序列相位调制(PM)相结合的混合波形设计方法。
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