变动间期

词组短语

variable interval

与变动间期相关的网络例句 [注：此内容来源于网络，仅供参考]

Most species of fish larvae and juveniles belonged to euryhaline fish.

与历史间期资料相比，经济性鱼在种类上和数量上都有所减少，低价值鱼类比例的增加成为调查区仔稚鱼资源结构的变动趋势，表明长江河口水域经济种类仔稚鱼资源已受到严重的威胁。

This study showed the annual occurrence of the firefly, Pyrocoelia analis . This survey was conducted in the Shilo area of Yunlin County from 1998 to 1999. The occurred fluctuation have shown male appeared from March to October. Low peak appeared from March to April and the high peak appeared from July to August annually. The larvae of various stages were overwintered from September to following February.

本研究调查西螺与新营二地台湾窗萤 Pyrocoelia analis (Fabricius 之周年发生变动情形，从云林县西螺地区调查(1998-1999)结果显示三月到十月间是雄虫之发生期，其中三月到四月间有一次小高峰期，七月到八月间有另一次大高峰期，十一月后至次年的二月间以幼虫越冬。