定期的

Dentists advise their patients to brush and floss regularly to prevent their teeth from decaying.

牙医建议他们的病人定期刷牙并用洁牙线剔牙，以防止蛀牙。

Britain's best periodical art magazine.

英国最好的定期出版的艺术杂志。

Water should be regularly chlorinated in public swimming baths to keep it pure.

泳池的水应定期使用氯气消毒,以保持干净。

In fact the level of compression created within a regular pulsejet engine is very low, even by automobile standards.

事实上范围内定期pulsejet引擎创建的压缩程很低甚至汽车标准。

Trees of the family Dipterocarpaceae dominate the canopy and emergent layers of the hyper-diverse, aseasonal, humid lowland tropical forests of Southeast Asia.

以龙脑香科植物为主的东南亚热带雨林有一非常特别的现象，不定期的大开花现象。

A life insurance company contract that pays periodic income benefits for a specific period of time or over the course of the annuitant's lifetime.

在特定期间定期定额支付的款项。指在约定的时间内，按年支付相等金额的款项。例如，保险司每年的年金、退休金等。