bays of china 中文意思是什麼
bays of china
解釋
中國海灣列表-
Nowadays the development of abyssal aquaculture cages is playing an increasingly important role in the sea farming industry in china but meanwhile, there are still some problems arising the sea farming industry in china focus on shoals and bays with good protection in which the water depth is small while the aquaculture density is large. these factors in addition to the pollution problems in the coastal gone have descended the quality of fishes, thus have had some negative effects on the economic benefits
目前我國海水網箱養殖業發展迅速，日漸成為漁業發展中的一個重要產業，在發展的同時，也暴露出一些問題：我國海水養殖主要在淺灘、掩護較好的海灣內，水深較淺，養殖密度大，加上近岸水域的污染，使魚品質下降，經濟效益受到一定影響。 -
With the rapid transit development of china ' s highway and railway, more long span bridges were needed to span great rivers and bays, pc continuous rigid frame bridge emerged as the times require and was developed fleetly in recent years
隨著我國公路和鐵路高速交通事業的發展，急需修建更多的大跨度橋梁以跨越大江、大河和海灣，預應力混凝土連續剛構橋應運而生，近年來得到較快的發展。
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