front consisting of the conical head of a missile or rocket that protects the payload from heat during its passage through the atmosphere
双语例句
用作名词 (n.)
One showed what may have been a small chip from an insulating tile falling off the underside of the shuttle's nose cone, Shannon said. 沙农透露，其中的一部摄像机拍摄到一小块隔热瓦从航天飞机头锥外部脱落。
