bìng xíng 
		to proceed in parallel
side by side (of two processes, developments, thoughts etc)
		 
		
		
		
		
			 
		
				
		
			bìng xíng bù bèi 
		to run in parallel without hindrance
not mutually exclusive
two processes can be implemented without conflict
		 
		
		
														
		
		
					
				
		
			bìng xíng kǒu 
		parallel port (computing)