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				           		硅质岩硅、氧同位素地球化学也显示其热水成因之特点。
						        					            	 The silicon and oxygen isotopes also demonstrate the characteristics of hydrothermal origin.
								    										 
								    				            	 youdao 
- 
				           		硅质岩硅、氧同位素地球化学也显示其热水成因之特点。
						        					            	 The silicon and oxygen isotopes also demonstrate the characteristics of hydrothermal origin.
								    										 
								    				            	 youdao