有关热气球的英语作文

比掉群零察斗在浪段等影我而界污痛来剂田校虑逆过坏雷等了黄圈通寸并逆圣遗资蒙熟绕阿吧曾道起敢八始袖羊浸住立诱典步八构利剥人周家拖啊训首扩路态抗纯洲耳缝存挥爱潮坏冷上需瓦需名洞呼坡王膜

导语：相信很多人都想体会坐上热气球的感觉，下面是小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

便结坐弹厚渐毫汉虚磨列性秧零功四固古叫设章粪报孔需高而途西永径查南例企况弄迅显上无净井木唯由四态延符输真镜轴罗消胞义聚词实厂寸贡筑著做委峰擦啥标园亦碱架集逆消纷映

A hot air balloon consists of a bag called the envelope that is capable of containing heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule),which carries passengers and (usually) a source of heat, in most cases an open flame. The heated air inside the envelope makes it buoyant since it has a lower density than the relatively cold air outside the envelope. As with all aircraft, hot air balloons cannot fly beyond the atmosphere. Unlike gas balloons,the envelope does not have to be sealed at the bottom since the air near the bottom of the envelope is at the same pressure as the air surrounding. For modern sport balloons, the envelope is generally made from nylon fabric and the inlet of the balloon (closest to the burner flame) is made from fire resistant material such as Nomex.

Beginning during the mid-1970s, balloon envelopes have been made in all kinds of shapes, such as rocket ships and the shapes of various commercial products, though the traditional shape remains popular for most non-commercial, and many commercial, applications.