初次: the first time飞行: flight; flying; aviate; voya ...首航: maiden voyage or flight初次飞行: maiden flight第一次飞行: first flight; first ride每周两次飞行: twice-weekly flight首次飞行任务: maiden mission停止一次飞行: to discontinue a flight完成一次飞行: the completion of a flight首航: first open water; inaugural flight; maiden trip; maiden voyage (of an aircraft or ship); the first flight; virgin voyage第一次飞行的目标: first-flight target改变一次飞行任务: to change a flight首次飞行迩脱机率: first flight escape probability样机第一次飞行: prototype first flight一次飞行总时间: chock-to-chock time具体的一次飞行或航班: specific flight立即完成的再次飞行准备: immediate turnaround时刻表上规定的各次飞行: services on schedule下次飞行的仪器准备: instrumentation turnaround再次飞行试验准备时间: text turnaround time首航的: inaugural首航封: first flight cover (ffc.c初次: the first time 初次出场 make one's bow; 初次登台 appear for the first time on the stage; make one's debut; 初次见面 see sb. for the first time飞机的首航: the maiden flight of an aircraft首航客机: inaugural flight