periodic

形容词周期的; 定期的; 回归的; 间歇的，时而发生的

1. 周期性：重力场波来源的型式可分为三大类:脉冲性(impulsive)、周期性(periodic)和随机性(stochastic,见表一). 脉冲性来源一次产生一个波,可持续几个毫秒,相当於声波穿过崩溃中的星球内核所需的时间. 星体崩溃时物质高速运动是脉冲性重力场波的一大来源,

2. 周期性的：这些彗星中有 184 个是周期性的(periodic)彗星(轨道周期少於 200 年而剩下来的其中一些无疑地也是周期性彗星,但我们并没有足够精确的资料来确定出它们的运行轨道.

3. 周期：根据对变量的不同要求,数据存储的触发方式有3种:根据周期(Periodic)、根据变化(On Change) 和根据需要(On demand). 其中根据周期方式中又有多种时间类型可供选择. 存储文件的管理也很方便,操作人员可选择文件生成的间隔时间并自动删除过期文件.

1. 间发性的；定期的；周期的
    Periodic events or situations happen occasionally, at fairly regular intervals.

    e.g. Periodic checks are taken to ensure that high standards are maintained.
           定期检查以确保维持高水准。
    e.g. ...periodic bouts of illness.
           周期性发病

1. \u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D

1. The campus network will be under comprehensive supervision and periodic inspections of educational administrations, the ministry said.

2. Russian and American scientists say they have created two new " superheavy " elements that will reside at the extreme end of chemistry's periodic table of elements.

3. Liu started this periodic work early this year and she is one of the three cleaners in her village.

4. Despite the hereditary and communicable factor and some cases of depression, periodic suicides in rural areas are largely related to complicated social backgrounds.

5. danci.911cha.com

5. It would mean that even if the culprit is not found, the victim could still access the common compensation fund on a periodic basis.

6. Successful as Apple and Amazon have been with their devices, there are periodic signs of disquiet.

7. \u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD

7. Egypt has long struggled with Islamic militants interested in overthrowing the secular government, but has contained the threat with periodic crackdowns and by allowing Islamists some political activity.

8. But it seems some of the officials forget this objective and treat food safety supervision as a periodic task rather than a permanent mission.

9. The periodic releases are seen as both a symbolic gesture to highlight increased security and a needed safety valve.

10. " Rare earth " is the name given to a group of elements in the periodic table.

adj