单词	Bessel beam
释义	Bessel beam Bessel光束
随便看	keep a thing private keep a tight control on revenue and expenditure keep a tight grip on keep a tight hand on keep a tight hand on someone keep a tight rein on keep a tight rein on something keep at it keep at retard keep at something keep at sth keep awake keep a watch keep a watchful eye on keep a watch on keep a watch over keepaway keep away keep-away keep away (from) keep away from keep away from fire keep away from heat keep away from moisture keep a weather eye on 441531251 44153251 441532531 44153254 441532551 441533 441533434 441534221 441534434 441534444 ばむばめんばめん【場面】ばやばらばらばらばらばらばら【散】