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- extragonadal aromatization 性腺外芳香化
- Objective: To evaluate the diagnostic value of US in extragonadal germ cell tumors(EGGCT). 目的评价超声对性腺外生殖细胞肿瘤的诊断价值。
- Possible signs of extragonadal germ cell tumors include chest pain and breathing problems. 性腺外生殖细胞肿瘤的可能表现包括胸痛和呼吸问题。
- The course of aromatization reaction of amylene was studied by a high pressure micro reaction-chromatograph. 在高压微反-色谱仪上考察了戊烯的芳构化反应历程。
- The above conversion was believed to proceed via a substitution cyclo aromatization mechanism. 苯硫酚为亲核体时,产物为芳基苯基硫醚。
- Compared with traditional way,catalytic aromatization of isophorone has been proved to have many advantages. 与传统工艺相比,异佛尔酮的催化芳构化制备3,5-二甲基苯酚方法具有很多优点。
- Conclusions: Endodermal sinus tumor is a malignant germ-cell tumor that usually involves the gonadal tissue.Primary extragonadal sites occur rarely, and include the orbit. 结论：内胚窦瘤是一种恶性生殖细胞肿瘤，常常使生殖腺组织受累，包括眼眶在内的其他部位和少发生。
- The coking and deactivation of virgin naphtha aromatization catalyst are studied on isothermal reactor. 利用等温固定床反应器研究了直馏汽油芳构化改质催化剂的结焦失活规律。
- Product triphen in GLP is light hydrocarbon aromatization technique in A petrochemical field. 液化气芳构化生产三苯工艺，属于石化领域轻烃芳构化技术。
- Non-oxidative aromatization of methane is significant in the fields of energy utilization and catalysis science. 甲烷无氧芳构化反应的研究对能源利用、催化科学均具有重大意义。
- Furthermore, two synthesising routes are compared and the research of catalytic aromatization of isophorone is summarized in this paper. 本文对两种工艺路线进行了比较，论述了异佛尔酮催化芳构化的研究进展。
- The method of methane activation and the recent results of the dehydrogenation and aromatization of methane in the absence of oxidant are presented. 综述了甲烷活化的方法和甲烷无氧脱氢芳构化反应目前达到的结果。
- Furthermore,two synthesising routes are compared and the research of catalytic aromatization of isophorone is summarized in this paper. 本文对两种工艺路线进行了比较,论述了异佛尔酮催化芳构化的研究进展。
- The target of this dissertation is to study the stability of catalysts and the mechanism of propane aromatization on metal modification catalysts. 现有芳构化催化剂存在活性较低、稳定性较差等问题,本工作旨在提高芳构化催化剂的稳定性,探讨丙烷芳构化的反应机理。
- The technique advance of C4 olefin aromatization,catalytic cracking and disproportionation for producing low-carbon o... 并介绍了C4烯烃芳构化、催化裂解、歧化制低碳烯烃等新技术的研究进展情况。
- The sulfur corrosion condition and its harmness to the regeneration system for distilled gasoline aromatization unit were reviewed. 摘要阐述了直馏汽油芳构化装置再生系统的硫腐蚀状况及危害；
- The comprehensive development scheme of aromatization of natural gas in absence of oxidant and recovery of sulfur in natural... 同时还介绍了甲烷无氧芳构化制芳烃技术和天然气中回收硫的综合利用方案。
- This paper introduces the method of direct aromatization reaction of methane and the experimental results achieved at present. 综述了甲烷催化转化合成芳烃的方法和目前实验达到的结果.
- In a nonhydrogenating circumstance,the performance of hybrid catalysts with HZSM-5 as the active component for olefin reduction and aromatization of FCC gasoline was studied. 在非临氢条件下采用HZSM-5作为催化剂活性组元,研究了流化催化裂化(FCC)汽油芳构化降烯烃的反应性能。
- With the decrease of total acidity, the activity of aromatization decrease. With the decrease of strong Bronsted acid sites, cracking reactions decrease. 各改性HZSM-5分子筛催化剂芳构化性能变化与表面酸性有关,总酸量下降,芳构化活性下降,强B酸中心减少,深度裂解反应减少;
