文昌组浮游藻类相对丰度高，表明始新世珠江口古湖的表层水初始生产力高。
The high relative abundance of the fossil planktonic algae indicates the high primary surface productivity of the palaeo-lake within the Oligocene.
大约在公元4世纪，大分市所在地域便被称为丰后国。
Around the 4th century AD, the site of the Oita city was once called "Bungo".
它不仅以藏书之珍丰闻名于世，而且以园林构筑之奇妙称誉全国。
The world-famous library is noted not only for its rich collection of rare books but also for its wonderful architecture.
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