The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
Rather, it will be assembled nearby from prefabricated segments each about 25 meters high and weighing an average of 300 metric tons.
它会在附近由预制组件进行组装。每个组件都有大概25米高并且平均重达300吨。
The paper's authors give the example of Gaudencia, a woman who owns three shops in western Kenya, each about 30 minutes by bus from the others.
论文的作者以代理商Gaudencia作为一个案例【注4】。这位女士在西肯尼亚拥有3个代理店，每个代理店之间有30分钟的车程。
Astrologers call this period aGreat Year, and they divide it into 12 Great Months or astrological"ages", each about 2, 147 years long. Each age corresponds to one of thesigns of the zodiac.
占星家们管这段时期为一个大年，并且将其划分为12个大月或称之为占星学意义上“时代”，每一个时代持续2 147年，对应十二星座符号之一。
Divide the dough into 3 even portions, each about 150 grams.
将面团分割成3等份，每份大约是150克。
Adelaide's and Brisbane's populations are each about three quarters of a million.
阿得雷德和布里斯班的人口各为七十五万。
JOG: I had several conversations today with people close to the Lakers, and asked each about the status of Lamar Odom.
JOG：今天我和一些湖人内部人士谈了话，问了他们一下关于拉马尔·奥多姆的状况。
The last major stops for love signals in the brain are the caudate nuclei, a pair of structures on either side of the head, each about the size of a shrimp.
爱的信号“在大脑中的“终点站”是尾状核，它们是脑部两侧的一对组织，每只大小和虾一般大。”
A technique invented by Weitz and his colleagues produces equal-sized droplets of liquid crystal, each about a dozen microns across (a micron is one thousandth of a millimeter).
韦茨和他的同事们发明了一种产生相同尺寸液晶微滴的技术，每一滴大约12微米（一微米等于千分之一毫米）。
The bridge, which would have rested on 15 piers, each about 1.8 miles apart, would have required thousands of workers, 450,000 tons of steel and 250,000 cubic metres of concrete to complete.
整座海峡吊桥计划由15个桥墩组成，彼此之间相隔1.8英里，需要数千名工人的劳作、450,000吨钢铁、250,000立方米的混凝土才能建成。
The bridge, which would have rested on 15 piers, each about 1.8 miles apart, would have required thousands of workers, 450,000 tons of steel and 250,000 cubic metres of concrete to complete.
整座海峡吊桥计划由15个桥墩组成，彼此之间相隔1.8英里，需要数千名工人的劳作、450,000吨钢铁、250,000立方米的混凝土才能建成。
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