- 
				           		Orthogonal test method is applied to design optimization of 3d grains of solid motors.
						        										 	
						        					            	 首次利用正交试验优化设计方法对固体发动机三维药柱进行了优化设计。
								    				            	 youdao 
- 
				           		Orthogonal test method is applied to design optimization of 3d grains of solid motors.
						        										 	
						        					            	 首次利用正交试验优化设计方法对固体发动机三维药柱进行了优化设计。
								    				            	 youdao