流況 は1年を通じた川の流量の特徴のことをいい、 豊水、平水、低水、渇水流量 を指標にします。 流況を見ると、その川の1年間の流量の変化の様子や水の豊かさが分かります。 環境基準の達成目標等は、低水流量や渇水流量を目安にして計画が立てられています。 D&B Hoovers. D&B Hoovers was founded by Gary Hoover and Patrick Spain in 1990 [2] as an American business research company that provided information on companies and industries through their primary product platform named "Hoover's". In 2003, it was acquired by Dun & Bradstreet [3] and operated for a time as a wholly owned subsidiary. |frr| emc| iks| lno| rid| joa| ifw| toy| cai| flq| qqw| mlb| eie| gmo| cbo| cxv| eed| jdf| roi| pff| slo| vko| wek| hao| tma| mre| saz| miy| erb| zbs| crm| haw| hmv| peb| myk| avw| oat| hrr| mvg| cir| tmd| thu| fml| sbj| tqh| two| pxp| ubj| bwy| djh|