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				           		应用冰冻法和透析法研究了柞蚕和家蚕丝胶的提取方法。
						        					            	 The different distilling methods freeze- method and dialyze- method of tussah and silkworm sericin were studied.
								    										 
								    				            	 youdao 
- 
				           		应用冰冻法和透析法研究了柞蚕和家蚕丝胶的提取方法。
						        					            	 The different distilling methods freeze- method and dialyze- method of tussah and silkworm sericin were studied.
								    										 
								    				            	 youdao