名词
中文翻译：心材树
同义词：
['heartwood tree', 'heartwood']
例句：
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1.The heartwood of the oak tree is used for furniture making.
橡树的心材用于制作家具。
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2. The heartwood from this tree is very valuable for its durability.
这种树的芯材非常耐用，因此价值很高。
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3. The heartwood of the tree can be used to make musical instruments.
这种树的芯材可以用来制作乐器。