initial ray原始射线initialn.(词)首字母adj.开始的；最初的；字首的vt.签姓名的首字母于initial tangent modulus原切模数Initial Cruise Altitude初始巡航高度initial incidence angle初始入射角initial synchronization初并网,初始同步initial stage of a fire火灾初期initial stresses method初应力法initial boundary values初边值问题initial gas distributor进气初始分布器initial mobility period初始运动期Initial Support Element初始支援分队