許多大城市汽車多，排放大量廢氣，污染問題日益嚴重。
Waste gases from automobiles account for the ever increasing problems of pollution in many big cities.
許多大公司和研究機構在基于SAN網絡協議的存儲管理系統方面進行了大量的研究工作，并推出了一些商業化的系統。
Many foreign large corporations and research organizations have done a lot of research work in storage managing system based SAN.
美力行公司曾為許多大型建筑提供了大量的各種類型規格的點式幕墻配件。
Meilihang Company has ever provided large buildings with large amount of point-style curtain wall parts of various kinds and specifications.