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    • 雨水

      • 2025年2月18日星期二
        農曆 一月廿一
  1. Yǔshuǐ / 雨水, Usui, Usu, or Vũ thủy, literally meaning rain water, is the second solar term. It begins when the Sun reaches the celestial longitude of 330 and ends when it reaches the longitude of 345 . It more often refers in particular to the day when the Sun is

    Year
    Begin
    End
    庚子
    2020-02-19 04:55
    2020-03-05 02:56
    己亥
    2019-02-18 23:05
    2019-03-05 21:12
    戊戌
    2018-02-18 17:18
    2018-03-05 15:28
    丁酉
    2017-02-18 11:31
    2017-03-05 09:32
  2. en.wikipedia.org › wiki › StormwaterStormwater - Wikipedia

    Stormwater carrying street bound pollutants to a storm drain for coastal discharge. With less vegetation and more impervious surfaces ( parking lots, roads, buildings, compacted soil ), developed areas allow less rain to infiltrate into the ground, and more runoff is generated than in undeveloped conditions.

  3. Basic configuration of domestic rainwater harvesting system in Uganda. [1]Rainwater harvesting (RWH) is the collection and storage of rain, rather than allowing it to run off.Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit (well, shaft, or borehole), aquifer, or a reservoir with percolation, so that it seeps down and restores the ground water.

  4. en.wikipedia.org › wiki › Rain_gardenRain garden - Wikipedia

    Rain gardens can improve water quality in nearby bodies of water and recharge depleted groundwater supply. Rain gardens also reduce the amount of polluted runoff that enters the storm sewer system, which discharges directly to surface waters and causes erosion, water pollution and flooding. [5]

  5. en.wikipedia.org › wiki › Solar_termSolar term - Wikipedia

    Each solar term is divided into three pentads [ zh] ( 候; hòu ), so there are 72 pentads in a year. Each pentad consists of five, rarely six, days, and are mostly named after phenological (biological or botanical) phenomena corresponding to the pentad.

  6. en.wikipedia.org › wiki › Storm_drainStorm drain - Wikipedia

    Drains receive water from street gutters on most motorways, freeways and other busy roads, as well as towns in areas with heavy rainfall that leads to flooding, and coastal towns with regular storms. Even rain gutters from houses and buildings can connect to the storm drain.

  7. The United States Environmental Protection Agency (EPA) Storm Water Management Model ( SWMM) [ 1][ 2][ 3][ 4][ 5][ 6][ 7][ 8] is a dynamic rainfall – runoff – subsurface runoff simulation model used for single-event to long-term (continuous) simulation of the surface/subsurface hydrology quantity and quality from primarily urban ...

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