单词	束流引出孔道
释义	束流引出孔道医beam exit channel
随便看	observational material observational measurement observational method observational network observational place observational point observational precision OBSERVATIONAL PRINCIPLE OF DYNAMIC WATER-LEVEL observational program observational record observational research Observational result observational station observational studies observational study Observational Study and Intermingling Factors observational survey observational synthesis observational technique observational techniques in space astronomy observational terms observational-theoretical distinction observational tools observational trajectory observational twilight