镍币

Thisover-the-top celebration of stanky richness was one of the strongestradio hits of 2007, thanks to its grinding beat, nickel-plated hooksand 50's pile-driving rhymes.

由于歌曲中有碾压的鼓点，像镍币一样的符尾和50 Cent充满节奏的韵律，这首庆祝暴富的歌曲成为了2007年电台最常播放的经典之一。

It was composed of 75% silver and 25% copper, had a six-pointed star on one side, a Roman numeral III on the other, and — weighing in at four-fifths of a gram — was the lightest coin ever produced by the US Mint. The silver three cent piece was discontinued by the Coinage Act of 1873; at that time, a three cent nickel coin was issued, made up of copper and nickel and slightly larger than the silver version.

改硬币是由75%的银和25%的铜铸造，图案的一面有一个六角星，另一面是罗马数字III，重量只有1克的5分之4 -这枚硬币是美国造币厂有史以来发行的最轻的硬币。1873年通过的《硬币法案》，停用了这种硬币；与此同时发行了由铜和镍铸造的3美分镍币，这种硬币比银版硬币略大一些。

On the number five spread, children will find not only the three main objects (an airplane with five windows, a soccer ball made up of pentagons, and a five-wheeled choo-choo train), but five-pointed sea stars, a nickel, a pea pod with five peas, and more.

在&数字5&那一章节中，小朋友们不但要寻找三个主要的物体（有五个窗户的飞机、用五角形制作的足球、有五个轮子的小蓝火车），还要找到五角的海星、五分的镍币，还有里面有五粒豌豆的豌豆荚，等等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。