id	keyword
esrj-104741	� �
esrj-104741	oil
esrj-104741	sample
esrj-104741	method
esrj-104741	forest
esrj-104741	number
esrj-104741	features
esrj-104741	layer
esrj-104741	water
esrj-104741	data
esrj-104741	model
esrj-104741	liaohe