lake ecosystemとは 意味・読み方・使い方

WATER PURIFYING CONSTRUCTION METHOD BASED ON L-SHAPED BLOCK WITH POT FOR CONSERVATION OF ECOSYSTEM AND LANDSCAPE IN NATURAL ENVIRONMENT AND FOR COMBINATIONAL USE AS REVETMENT OF LAKE OR RIVER AND FISHING BANK例文帳に追加

鉢付Ｌ型ブロックによる、自然環境の生態系及び景観保護の為の、湖沼及び河川の護岸と魚巣を兼ねた浄水工法。 - 特許庁

A staff member at Shiga Prefectural Fisheries Experiment Station says, "Piranhas might upset the ecosystem by eating native fish. They might even hurt people. People should not let such pets loose in a lake."発音を聞く 例文帳に追加

滋賀県水産試験場の職員は「ピラニアは，在来魚を食べることにより生態系を崩す恐れがある。人間に危害を加えることさえあるかもしれない。湖にこのようなペットを放流すべきではない。」と話す。 - 浜島書店 Catch a Wave

To provide a method for purifying bottom sediment in a closed water area which can be carried out at a low cost without exerting a bad influence on the ecosystem of a lake or the like.例文帳に追加

湖沼等における生態系への悪影響を及ぼすことなく、かつ低コストで施工可能な閉鎖性水域の底質浄化方法を提供する。 - 特許庁

To provide a method for easily regenerating submerged plant clusters at a low cost even in a large-scale lake through giving almost no adverse effect on an ecosystem, and consequently, purifying water quality in a closed water area.例文帳に追加

生態系への悪影響を殆ど与えずに、大規模湖沼でも容易かつ低コストで沈水植物群落の再生を行い、ひいては、これによって閉鎖性水域の水質浄化を図る。 - 特許庁

To decrease the number of connecting parts even in a large-sized product by facilitating not only the linear construction but also curved construction of a slope environment of a road, a river, a park, a lake or the like or an underwater ecosystem concrete block.例文帳に追加

道路、河川、公園、沼等の法面環境又は水中生態系コンクリートブロックの直線施工ばかりでなく曲線施工も容易として大型製品でも連結部の数を少なくしてなる生態系空連結ブロックの連結方法の提供。 - 特許庁

To provide a bottom sediment improvement device which recovers an ecosystem by supplying oxygen to the bottom of a pond, a dam lake, and a cove where the water bottom is an anoxic state to be putrefied, and fishes and shellfishes cannot grow, and purifies water by a food chain while increasing the fishes and shellfishes.例文帳に追加

水底が無酸素状態に陥って腐敗し、魚介類が育たなくなってしまった池やダム湖、入り海の水底に酸素を供給して生態系の回復を図り、魚介類を殖やしながら食物連鎖で水を浄化する底質改善装置を提供する。 - 特許庁