diurnal tides meaning in English

潮汐。

Spring tides : semi - diurnal tides of large range occur when the moon is new or full
大潮：出现在每个月朔或望的时期，潮差特别大的潮汐。
Semi - diurnal tide : a tidal pattern in which there are two high tides and two low tides in a day
半日潮：每日出现两个涨潮和两个退潮的潮汐类型。
Using the split steps finite element method , the varied - boundary two - dimensional numerical model of diurnal tide and tidal current in the luoyuan bay is constructed
摘要采用不规则三角形网格的分步杂交法，建立罗源湾海域二维变边界全日潮汐和潮流数值模型。