你永远不能真正拥有百达翡丽，你只是为下一代保存！
You never actually own a Patek Philippe. You merely look after it for the next generation.
本文介绍了微藻保种的几种常用方法，包括继代保存、固定化保存和超低温保存。
Several kinds of typical methods of maintenance microalgae species are presented, including succeeding preservation, immobilization storage and cryopreservation.
不同沉积层中保存的壳有不同的含量比例，显示出更新代海洋温度的变化。
Different ratios in the shells preserved in various layers of sediment reveal the temperature changes in the oceans during the Pleistocene epoch.
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