[ADJ 形容词]同 cyclicalCyclic means the same as cyclical .
Oxford
cyc·licAWL/ˈsaɪklɪk; NAmEˈsaɪklɪk//ˈsɪklɪk; NAmEˈsɪklɪk/(alsocyc·lic·al/ˈsaɪklɪkl; NAmEˈsaɪklɪkl//ˈsɪklɪkl; NAmEˈsɪklɪkl/)adjective[usually before noun ]repeated many times and always happening in the same order 循环的;周期的◆the cyclic processes of nature自然界的循环过程◆Economic activity often follows a cyclical pattern.经济活动常常遵循周期性模式。▶cyc·lic·al·ly/; NAmE/adverb◆events that occur cyclically周期性出现的事情cyc·lic/ˈsaɪklɪk; NAmEˈsaɪklɪk/cyc·lic·al/ˈsaɪklɪkl; NAmEˈsaɪklɪkl/cyc·lic·al·ly/; NAmE/