亚洲一区亚洲二区亚洲三区,国产成人高清在线,久久久精品成人免费看,999久久久免费精品国产牛牛,青草视频在线观看完整版,狠狠夜色午夜久久综合热91,日韩精品视频在线免费观看

熱氣球的英語(yǔ)作文

時(shí)間:2023-05-02 01:05:28 英語(yǔ)作文 我要投稿
  • 相關(guān)推薦

有關(guān)熱氣球的英語(yǔ)作文

  在日常生活或是工作學(xué)習(xí)中,大家總免不了要接觸或使用作文吧,作文是通過(guò)文字來(lái)表達(dá)一個(gè)主題意義的記敘方法。那要怎么寫(xiě)好作文呢?以下是小編收集整理的有關(guān)熱氣球的英語(yǔ)作文,歡迎閱讀,希望大家能夠喜歡。

有關(guān)熱氣球的英語(yǔ)作文

  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.

【熱氣球的英語(yǔ)作文】相關(guān)文章:

寫(xiě)熱氣球作文04-11

坐熱氣球作文11-01

關(guān)于制作熱氣球的作文04-29

自制熱氣球初中作文04-22

關(guān)于熱氣球的作文(通用26篇)04-08

想象”熱氣球“的悲劇800字作文04-30

中班美術(shù)活動(dòng)熱氣球教案04-29

關(guān)于熱氣球的作文(錦集4篇)12-28

二年級(jí)寫(xiě)熱氣球的作文04-26

我與自然小學(xué)英語(yǔ)作文小學(xué)英語(yǔ)作文-英語(yǔ)作文05-02