Collins had to pilot the shuttle through a 360 degree flip while flying beneath the International Space Station. It allowed colleagues on the orbiting lab to photograph the craft's underside and check if the heatshield had been breached.
18 hours (video streaming), 15 hours (wireless web)
，详情可参考体育直播
即便某一层权重被调低，整体的可被引用性也不会塌方。
LLVM IR creation 329.712