upstream migration 中文意思是什麼

upstream migration 解釋
溯河洄遊
  • upstream : adv. 向上游，溯流。adj. 1. 溯流而上的。2. （石油工業等）上游的，和石油的勘探、開采及輸送到起運港口有關的〈石油工業此後的提煉等過程則稱為下游（downstream）產業〉。
  • migration : n. 1. 移住，遷移；移動；徙動。2. （鳥）移棲，遷徙；（魚）洄遊；（植物）侵移。3. 移住者群，移棲群。4. 【化、物】原子移動；電離子的移動。
  1. According to the test and observation indicated that mostly fish goes upstream and far away the sluiceway when fish migration, so fishway designed by us was arranged in the right bank of reservoir area and far away from the electricity generation hole intake upstream about 280 meters in order to induce the fish entering the fishway

    根據試驗和觀察表明，魚類洄遊時大都沿岸上溯，同時應遠離泄水道，故我們的魚道進出口是布置在庫區右岸，離發電洞進口上游約280米處，以利誘導魚類進入魚道。
  2. At the left side of the photo is fish ladle to facilitate the upstream migration of oshima to the intake were for their habitation and reproduction

    照片左側為魚梯，以便瀕臨絕種之?魚能溯河遷徙至取水堰上游，供其繁衍棲息。
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