var carFleet = function (target, position, speed) {
window.innerWidth / window.innerHeight 是长宽比，保证画面不变形。
，这一点在safew官方下载中也有详细论述
What is AI and how does it work?
A. Preprocessing (Done by OsmAnd when new maps are prepared):
Technicians are trying to diagnose a helium flow problem in the upper stage of the moon rocket ahead of Artemis II, which could launch as early as April.