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水运交通指示
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position indicating mark
示位标
设在湖泊、水库、水网地区或其他宽阔水域与重要航道附近,标示岛屿、浅滩、礁石及通航河口等特定位置,供船舶定位或确定航向的水上助航标志,又称灯塔。在内河航道可以为各种形状的塔形体。塔身外涂有显明的颜色,便于船舶识别。
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concentrate supplement
concentrating column
concentrating solar cell
concentration
concentration cell
concentration Clarke
concentration class
concentration coefficient
concentration compactness lemma I
concentration compactness lemma II
concentration compactness lemma Ⅱ
concentration compactness principle
concentration-compactness principle
concentration constant
concentration control coefficient
concentration control coefficients,CCCs
concentration control of pollutant
concentration criterion of ore
concentration cylinder
concentration-dependent antibiotics
concentration-dependent antimicrobial agents
concentration direct reading
concentration ellipse
concentration equipment
concentration factor
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