pion
		
					
									畅通词汇												
					
 
							
									英 
											['paɪɒn]
																 美 
											['paɪɒn]
										
													美 
											['paɪɒn]
																 
										
							 
		
	 
 
	
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																			n.
																					名词
										
										
																					- 【物】π介子
- 介子
- k介子
- “介子”(前苏联被动式大气研究卫星)
 .
																					
																				 
 
 
 
 
						
							
							
								
																	Noun:
									
																				- 
										a meson involved in holding the nucleus together; produced as the result of high-energy particle collision										
																				 
 
 
 
 
 
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																							用作名词																						(n.)
											
										 
																							- 
												Two photons are created in the decay of the neutral pion.												
 双光子是在中性兀介子衰变中产生的。
 
 
 
 
 
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