preflight the a的意思|示意

Preflight: the pilot receives the most recent weather information and a fight plan has been filed.

飞行准备：飞行员接收最新气象信息，这时飞行计划已签发。

My guess is your a re making a cross domain request so the browser is sending the OPTIONS request as a 'preflight-request' asking the server for permission to send the PUT request.

我想你再做一个跨域请求，浏览器发送请求的选项为“预检要求要求服务器发送请求的提出。”

One crew chief stands next to the ladder as the other follows me while I'm performing my walk around the jet, the same preflight checks that any Raptor pilot would do prior to a mission.

一名队长站在了舷梯边上，其它人则跟着我围绕飞机进行检查，在执行任务之前每一名猛禽飞行员都要进行相同的起飞前检查。