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- background equivalent activity (BEA) [化] 天然本底放射性当量强度
- background equivalent activity 本底等效放射性
- background equivalent static wind load 背景静力等效风荷载
- maximum background equivalent illumination 最大背景等值照度
- background equivalent concentration 本底等效浓度, 背景当量浓度
- A dime is equivalent to ten pennies. 一角等于十分。
- He has a strong political background. 他有强大的政治背景。
- That incessant background music gets on my nerves. 那没完没了的背景音乐令我非常烦恼！
- The office has been humming with activity. 办公室一直忙着搞活动。
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相当于税前利润的四分之一。
- He has a working-class background. 他是工人阶级出身。
- A dime is the equivalent of two nickels. 一角硬币等于两个五分镍币。
- Get the fall in the background, will you? 把瀑布拍进背景中去好吗？
- A meter is equivalent to 39.37 inches. 一米相当於三十九点三七英寸。
- The threat of war has depressed business activity. 战争的威胁使经济萧条。
- A background accompaniment, as for a performer. 伴奏为一个演奏者配音伴奏
- There has been a lot of activity in the town today. 今天市中心相当热闹。
- His reply is equivalent to a refusal. 他的回答等於是拒绝。
- The town was humming with activity. 该市镇生气勃勃，呈现一片热闹的景象。
- A note equivalent to two whole notes. 二全音符相当于两个全音符的一个音符
