The adult tree gives us shade, oxygen and natural beauty.
大树为我们提供荫蔽、制造氧气，让我们享受大自然的美丽。
They then used local snowfall records to find the relationship between precipitation and the proportion of heavy oxygen in tree rings for the years covered by the weather records.
他们然后使用当地的降雪记录来寻找有气象记录的年代里降雪量和树木年轮中氧元素同位素的比率之间的关系。
One mature tree can produce enough oxygen for up to 18 people, depending on the size and type of tree.
一棵成年树，可以为多达18人供氧，具体数量依树的大小和种类有所不同。
For the flash, a very common phenomenon in Cr-Fe alloy argon-oxygen decarburization refining process, here the splash-prediction method is proposed based on binary tree SVM (BT-SVM).
针对铬铁合金氩氧精炼过程中时常发生的喷溅现象，提出一种基于BT - SVM的喷溅预测方法。
For the flash, a very common phenomenon in Cr-Fe alloy argon-oxygen decarburization refining process, here the splash-prediction method is proposed based on binary tree SVM (BT-SVM).
针对铬铁合金氩氧精炼过程中时常发生的喷溅现象，提出一种基于BT - SVM的喷溅预测方法。
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