常见例句The new synthesis process of bisphenol fluorene(BHPF)with thiohydracrylic acid as catalyst was introduced in this paper. 介绍了巯基丙磺酸法催化合成双酚芴新工艺,并对酚酮物质的量比、反应温度、反应时间、催化剂用量等工艺条件进行了研究。BHPF(Butterworth High Pass Filter) 巴特沃思高通滤波 返回 BHPF