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・ Return of the Shirt
・ Return of the Silver Tongue
・ Return of the Slice
・ Return of the Sorceress
・ Return of the Storks
・ Return of the Street Fighter
・ Return of the Super Ape
・ Return of the Ten Masked Men
・ Return of the Tender Love
・ Return of the Terror
・ Return of the Texan
・ Return of the Tiger
・ Return Fire
・ Return Fire (album)
・ Return Fire 2
Return flow
・ Return fraud
・ Return from Hell
・ Return from Mecca
・ Return from the Ashes
・ Return from the River Kwai
・ Return from the Stars
・ Return from Tomorrow
・ Return from Witch Mountain
・ Return Home
・ Return in Bloodred
・ Return J. Meigs, Jr.
・ Return J. Meigs, Sr.
・ Return Jonathan Meigs
・ Return loss


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Return flow : ウィキペディア英語版
Return flow
Return flow is surface and subsurface water that leaves the field following application of irrigation water. While irrigation return flows is a point source, they are expressly exempted from permit requirements under the Clean Water Act (P.L. 92-500, as amended).
Return flows generally return to the irrigation centre after a period of about three to four weeks; due to this, the farmers usually need to pour bleach into the water to clean it of any organisms that have entered the stream. If this is not taken care of, diseases such as typhoid or cholera could enter the irrigation and pose a risk of epidemic disease to surrounded towns and cities.
== References ==

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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Return flow」の詳細全文を読む



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