以下为句子列表：
英文: Abstract: Tertiary butylhydroquinone were synthesized by means of alkanisation with actalyst of cation exchange resin in this paper,and discusses several effective fators to the yield of tertiary butylhydroquinone,including the type of cation exchange res
中文: 文摘:以强酸型阳离子交换树脂为催化剂通过烷基化合成叔丁基对苯二酚，并系统地研究了树脂型号、物料比、反应时间等因素对合成收率的影响，确定了最佳反应条件。
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英文: Dynamics of soil NO3--N and its response to N additions in the major forests (pine, mixed and monsoon evergreen broadleaf forests) of Dinghushan Biosphere Reserve were studied by using ion-exchange resin bags method.
中文: 用离子交换树脂袋法,研究了鼎湖山三种森林(马尾松林、马尾松针叶阔叶混交林和季风常绿阔叶林)土壤硝态氮对外加氮的响应特征。
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英文: New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite-type catalysts and other catalysts which to be used in
中文: 阐述了用于环氧乙烷催化水合反应中的多羧酸衍生物催化体系、离子交换树脂催化体系、大环螯合物催化体系、季鏻盐催化体系、多相水滑石型催化体系及其他催化体系近年来的研究进展；同时阐述了用于碳酸亚乙酯法合成乙二醇反应中的催化体系的新进展。
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英文: The α-methylstyrene cyclic dimer,liner dimer～trimer,pentamer～octamer, and ,-diphenyl--methyl-amylene- were synthesized from α-methylstyrene(α-MS) with activated clay or strong acidic cation exchange resin as catalyst.
中文: 以α-甲基苯乙烯(α-MS)为原料,以阳离子交换树脂、活性白土等为催化剂分别合成了α-MS环二聚体,线性~ 聚体,~8聚体,.-二苯基--甲基-戊烯- 等化合物。
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英文: Study on the immobilization of lactase on positive ion exchange resin D151
中文: 阳离子交换树脂D151固定化乳糖酶研究
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